Παραπομπή APA

Jennings, R. K., & Acker, R. F. (1970). Protistan kingdom: Protists and viruses. V N Reinhold.

Παραπομπή Chicago Style

Jennings, Robert K., και Robert F. Acker. Protistan Kingdom: Protists and Viruses. V N Reinhold, 1970.

Παραπομπή MLA

Jennings, Robert K., και Robert F. Acker. Protistan Kingdom: Protists and Viruses. V N Reinhold, 1970.