Cita APA (7a ed.)

Campbell, R. y. R. (1953). Counting live and deal bull spermatozoa.

Cita Chicago Style (17a ed.)

Campbell, R.,J.Hancock y Rothschil. Counting Live and Deal Bull Spermatozoa. Cambridge-, 1953.

Cita MLA (8a ed.)

Campbell, R.,J.Hancock y Rothschil. Counting Live and Deal Bull Spermatozoa. 1953.