APA (7th ed.) Citation

Whitrow, G. J. (1975). The nature of time. Penguin Books.

Chicago Style (17th ed.) Citation

Whitrow, Gerald J. The Nature of Time. Harmondsworth, Middlesex: Penguin Books, 1975.

MLA (9th ed.) Citation

Whitrow, Gerald J. The Nature of Time. Penguin Books, 1975.