एपीए उद्धरण

Esposito, G. (1992). Quantum gravity, quantum cosmology, and Lorentzian geometries. Springer-Verlag.

शिकागो स्टाइल उद्धरण

Esposito, Giampiero. Quantum Gravity, Quantum Cosmology, and Lorentzian Geometries. New York: Springer-Verlag, 1992.

एमएलए उद्धरण

Esposito, Giampiero. Quantum Gravity, Quantum Cosmology, and Lorentzian Geometries. Springer-Verlag, 1992.