Cita APA (7a ed.)

Karg, H., & Schallenberger, E. (1982). Factors influencing fertility in the postpartum cow (1st edition.). Martinus Nijhoff.

Cita Chicago Style (17a ed.)

Karg, H., y E. Schallenberger. Factors Influencing Fertility in the Postpartum Cow. 1st edition. London: Martinus Nijhoff, 1982.

Cita MLA (8a ed.)

Karg, H., y E. Schallenberger. Factors Influencing Fertility in the Postpartum Cow. 1st edition. Martinus Nijhoff, 1982.