Published by National Geographic Society, 1948
Seller: Diatrope Books, Berkeley, CA, U.S.A.
Booklet (Saddle Stitched). Condition: Very Good. Unmarked text. Illustrated. Number 37 on cover. pp675-700. Offprint from the Vol. 93, May 1948 issue of National Geographic. Bound by Angwin Book Bindery in California.