APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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