APA (7th ed.) Citation

Fernald, M. L. (1932). The linear-leaved North American species of Potamogeton: Section axillares. [publisher not identified].

Chicago Style (17th ed.) Citation

Fernald, Merritt Lyndon. The Linear-leaved North American Species of Potamogeton: Section Axillares. [Boston]: [publisher not identified], 1932.

MLA (9th ed.) Citation

Fernald, Merritt Lyndon. The Linear-leaved North American Species of Potamogeton: Section Axillares. [publisher not identified], 1932.