Tryon, Geo W. books & textbook
American Journal of Conchology. New Series. Published by the Conchological Section of the Academy of Natural Sciences of Philadelphia ; Vol. VII, 1871-72, Part 1-4
Tryon, Geo W. Roberts, S. R. Nolan, Edw. J.
Leopold Classic Library /2016-04-10 Paperback / 332 Pages
American Journal of Conchology, Vol. 7 (Classic Reprint)
Forgotten Books /2020-04-23 Paperback / 292 Pages
isbn-10: 1331879582 / isbn-13: 9781331879589
