एपीए उद्धरण

Gibbons, G., & Hawking, S. W. e. (1993). Euclidean quantum gravity. World Scientific.

शिकागो स्टाइल उद्धरण

Gibbons, G.W., और S. W. ed Hawking. Euclidean Quantum Gravity. Singapore: World Scientific, 1993.

एमएलए उद्धरण

Gibbons, G.W., और S. W. ed Hawking. Euclidean Quantum Gravity. World Scientific, 1993.