एपीए उद्धरण

Rees, B. I., & Williams, H. R. (1992). Laparoscopic cholecystectomy: The first 155 patients. Royal College of Surgeons of England.

शिकागो स्टाइल उद्धरण

Rees, B. I., और H. R. Williams. Laparoscopic Cholecystectomy: The First 155 Patients. Royal College of Surgeons of England, 1992.

एमएलए उद्धरण

Rees, B. I., और H. R. Williams. Laparoscopic Cholecystectomy: The First 155 Patients. Royal College of Surgeons of England, 1992.