APA (7th ed.) Citation

Crooke, A. C., Butt, W. R., & Bertrand, P. V. (1966). Clinical trial of human gonadotrophins. Periodica.

Chicago Style (17th ed.) Citation

Crooke, A. C., Wilfrid R. Butt, and P. V. Bertrand. Clinical Trial of Human Gonadotrophins. Copenhagen: Periodica, 1966.

MLA (9th ed.) Citation

Crooke, A. C., et al. Clinical Trial of Human Gonadotrophins. Periodica, 1966.