Research methods in ecology Clements, Frederic E. (Frederic Edward), 1874-1945 creator text book Lincoln, Neb University Pub. Co 1905 1905
print
ENG Plant ecology QK901 .C62 https://www.biodiversitylibrary.org/bibliography/59795 2710019 05025414 10.5962/bhl.title.59795 DLC