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Published by The Academy of Natural Sciences of Philadelphia., 1969
Seller: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Condition: Very Good. ORIGINAL 1969 Reprint/Offprint of Journal Article; softcovers; in very good condition. Journal.
Publication Date: 1969
Seller: Literaturhökerei Wiese, Hardegsen, Germany
Proceedings of the Academy of Natural Sciences of Philadelphia 121: 129-152, 2 figs, 16 tabs 8vo, offprint.