एपीए उद्धरण

Williams, W. O. (1981). Aspirin Symposium 1980: International Congress and Symposium Series, No 39.

शिकागो स्टाइल उद्धरण

Williams, W O. Aspirin Symposium 1980: International Congress and Symposium Series, No 39. 1981.

एमएलए उद्धरण

Williams, W O. Aspirin Symposium 1980: International Congress and Symposium Series, No 39. 1981.