Cita APA (7th ed.)

Peacock, J. A., Heavens, A. F., & Davies, A. T. (1990). Physics of the early universe. I.O.P.

Cita Chicago (17th ed.)

Peacock, John A., Alan F. Heavens, i Andrew T. Davies. Physics of the Early Universe. Bristol: I.O.P, 1990.

Cita MLA (9th ed.)

Peacock, John A., et al. Physics of the Early Universe. I.O.P, 1990.