APA Style

Kreier, J, P. (1977). Parasitic protozoa : gregarines, haemogregarines, coccidia, plasmodia, and haemoproteids . London: Academic Press.

MLA Style

Kreier, Julius, P.. "Parasitic protozoa : gregarines, haemogregarines, coccidia, plasmodia, and haemoproteids". London: Academic Press, 1977. .