Guide to eastern ferns /
by Edgar T. Wherry ...; illustrated with line drawings by Oliver Stoner and Cyrus Feldman.
APA Citation
Wherry, E. Theodore. (1937). Guide to eastern ferns. [Lancaster, Pa.]: The Science Press Printing Company.
MLA Citation
Wherry, Edgar Theodore, 1885-. Guide to Eastern Ferns. [Lancaster, Pa.]: The Science Press Printing Company, 1937.
Warning: These citations may not always be complete (especially for serials).