Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
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Destination, rates & speedsSeller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Paperback. Condition: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less 0.2. Seller Inventory # G0590026062I5N00
Quantity: 1 available
Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Paperback. Condition: Fair. No Jacket. Former library book; Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less 0.2. Seller Inventory # G0590026062I5N10
Quantity: 1 available
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. First Edition. Used book that is in clean, average condition without any missing pages. Seller Inventory # 8034899-6
Quantity: 1 available
Seller: Better World Books: West, Reno, NV, U.S.A.
Condition: Good. First Edition. Used book that is in clean, average condition without any missing pages. Seller Inventory # 8034899-6
Quantity: 1 available
Seller: Gulf Coast Books, Cypress, TX, U.S.A.
paperback. Condition: Fair. Seller Inventory # 0590026062-4-22043629
Quantity: 1 available
Seller: Wonder Book, Frederick, MD, U.S.A.
Condition: Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included. Seller Inventory # S10C-03136
Quantity: 1 available
Seller: Wonder Book, Frederick, MD, U.S.A.
Condition: Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains. Seller Inventory # H17A-02360
Quantity: 1 available
Seller: The Book Garden, Bountiful, UT, U.S.A.
Paperback. Condition: Good - Cash. General use wear, surface and edges rubbed. Corners bumped and show wear. Some creasing to the cover and along the spine. Some soiling to the back cover. Pages show reader wear. Previous owner's name inside. Secure pages, solid binding. Stock photos may not look exactly like the book. Seller Inventory # 995564
Quantity: 1 available
Seller: The Book Beast, Mountain Grove, MO, U.S.A.
Hardcover. Condition: Good. 1st Edition. Ex-Library. Covers and corners show where from use. Inside is very nice and enjoyable. Seller Inventory # 005055
Quantity: 1 available
Seller: Polly's Books, Grand Rapids, MI, U.S.A.
Paperback. Condition: Good. 4th Printing, 1971. Softcovers have same cover art. A good softcover copy with a tight and square binding. Text and illustrations are clean but text has yellowed. Softcovers are good but are mildly scuffed. Careful packaging and fast shipping. We recommend EXPEDITED MAIL for even faster delivery. Shipped in 100% recyclable material. Seller Inventory # 40426
Quantity: 1 available