APA (7th ed.) Citation

Beier, H. M., Karlson, P., & Aitken, R. J. (1982). Proteins and steroids in early pregnancy. Springer-Verlag.

Chicago Style (17th ed.) Citation

Beier, H. M., P. Karlson, and R. J. Aitken. Proteins and Steroids in Early Pregnancy. Berlin ; New York: Springer-Verlag, 1982.

MLA (8th ed.) Citation

Beier, H. M., et al. Proteins and Steroids in Early Pregnancy. Springer-Verlag, 1982.