APA (7th ed.) Citation

Nicoll, W. (1909). Studies on the structure and classification of the digenetic trematodes. [Publisher not identified].

Chicago Style (17th ed.) Citation

Nicoll, William. Studies on the Structure and Classification of the Digenetic Trematodes. [Place of publication not identified]: [Publisher not identified], 1909.

MLA (9th ed.) Citation

Nicoll, William. Studies on the Structure and Classification of the Digenetic Trematodes. [Publisher not identified], 1909.