Cita APA (7th ed.)

National Science Teachers Association, Society of Protozoologists, ebrary, Inc, Anderson, O. R., & Druger, M. (1997). Explore the world using protozoa. National Science Teachers Association ; Society of Protozoologists.

Cita Chicago (17th ed.)

National Science Teachers Association, Society of Protozoologists, Inc ebrary, O. Roger Anderson, i Marvin Druger. Explore the World Using Protozoa. Arlington, VA : Lawrence, KS: National Science Teachers Association ; Society of Protozoologists, 1997.

Cita MLA (9th ed.)

National Science Teachers Association, et al. Explore the World Using Protozoa. National Science Teachers Association ; Society of Protozoologists, 1997.