Verlag: Proceedings of the National Academy of Sciences, vol. 21, no. 5, 1935, pp. 239-243., 1935
Anbieter: Eryops Books, Stephenville, TX, USA
Hardcover. Reprint; no covers; ex-library; minor shelfwear w/ light creasing of leaves; small light staple stains near hinge of first page and blank verso of last leaf; o/w in good condition.