APA (7th ed.) Citation
Valls, A., Albo, M., & Puig, R. (1973). Surgical treatment of hemorrhoidal disease and its complications.
Chicago Style (17th ed.) Citation
Valls, Alberto, Manuel Albo, and Roberto Puig. Surgical Treatment of Hemorrhoidal Disease and Its Complications. 1973.
MLA (9th ed.) Citation
Valls, Alberto, et al. Surgical Treatment of Hemorrhoidal Disease and Its Complications. 1973.
Warning: These citations may not always be 100% accurate.