Published by Scientific American, vol. 206, no. 5, 1962, pp. 116-125., 1962
Seller: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Condition: UNSPECIFIED. Reprint; no rear wraps; minor shelfwear w/ light creasing of wraps and leaves; scattered foxing; o/w in good condition.