Jahn, f. F., & Jahn, T. L. (1949). How to know the protozoa: A picturedkey 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. Iowa brown.
Cita Chicago Style (17a ed.)Jahn, frances Floed, y Theodore Louis Jahn. How to Know the Protozoa: A Picturedkey 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 brown, 1949.
Cita MLA (8a ed.)Jahn, frances Floed, y Theodore Louis Jahn. How to Know the Protozoa: A Picturedkey 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. Iowa brown, 1949.