Cita APA (7a ed.)

Kreier, J. P. (1977). Parasitic protozoa. Academic Press.

Cita Chicago Style (17a ed.)

Kreier, Julius P. Parasitic Protozoa. New York: Academic Press, 1977.

Cita MLA (8a ed.)

Kreier, Julius P. Parasitic Protozoa. Academic Press, 1977.