एपीए उद्धरण

Birkhoff, G. D. (1927). Dynamical systems. New York :bAmerican mathematical society.

शिकागो स्टाइल उद्धरण

Birkhoff, George David. Dynamical Systems. New York :bAmerican mathematical society, 1927.

एमएलए उद्धरण

Birkhoff, George David. Dynamical Systems. New York :bAmerican mathematical society, 1927.