Cita APA (7a ed.)

Allen, C. (1955). Astrophysical quantities. The Athlone Press.

Cita Chicago Style (17a ed.)

Allen, C.W. Astrophysical Quantities. London: The Athlone Press, 1955.

Cita MLA (9a ed.)

Allen, C.W. Astrophysical Quantities. The Athlone Press, 1955.