Devonian lycopods of New York State.
APA Citation
Grierson, J. Douglas. (1962). Devonian lycopods of New York State. [Ithaca, N. Y.].
MLA Citation
Grierson, James Douglas, 1931-. Devonian Lycopods of New York State. [Ithaca, N. Y.], 1962.
Warning: These citations may not always be complete (especially for serials).