Παραπομπή APA

Smith,E.V. (1941). Symposium on hydrobiology. Wisconsin press.

Παραπομπή Chicago Style

Smith,E.V. Symposium on Hydrobiology. Madison: Wisconsin press, 1941.

Παραπομπή MLA

Smith,E.V. Symposium on Hydrobiology. Wisconsin press, 1941.