एपीए उद्धरण

Birkhoff, G. D. (1968). Collected mathematical papers. Dover.

शिकागो स्टाइल उद्धरण

Birkhoff, George David. Collected Mathematical Papers. New York: Dover, 1968.

एमएलए उद्धरण

Birkhoff, George David. Collected Mathematical Papers. Dover, 1968.