Jahn, T. L., & Jahn, F. F. (1949). How to know the protozoa: A pictured-key for identifying the more common fresh water, marine, and parasitic protozoa, with elementary discussions of the importance of each group and of interesting facts concerning them. Wm. C. Brown.
Cita Chicago Style (17a ed.)Jahn, Theodore Louis, y Frances Floed Jahn. How to Know the Protozoa: A Pictured-key for Identifying the More Common Fresh Water, Marine, and Parasitic Protozoa, with Elementary Discussions of the Importance of Each Group and of Interesting Facts Concerning Them. Dubuque, Iowa: Wm. C. Brown, 1949.
Cita MLA (9a ed.)Jahn, Theodore Louis, y Frances Floed Jahn. How to Know the Protozoa: A Pictured-key for Identifying the More Common Fresh Water, Marine, and Parasitic Protozoa, with Elementary Discussions of the Importance of Each Group and of Interesting Facts Concerning Them. Wm. C. Brown, 1949.
