APA (7th ed.) Citation

Michek, J., Čierny, M., Kubačák, J., Sutorý, M., Kozumplík, L., & Vrastyák, J. Tumors of the rectum and anus.

Chicago Style (17th ed.) Citation

Michek, Jaroslav, M. Čierny, Jan Kubačák, Martin Sutorý, Ladislav Kozumplík, and Jiří Vrastyák. Tumors of the Rectum and Anus.

MLA (9th ed.) Citation

Michek, Jaroslav, et al. Tumors of the Rectum and Anus.