APA (7th ed.) Citation

Gregory, K. J. (1985). The nature of physical geography (1. publ.). Arnold.

Chicago Style (17th ed.) Citation

Gregory, Kenneth John. The Nature of Physical Geography. 1. publ. London [u.a.]: Arnold, 1985.

MLA (9th ed.) Citation

Gregory, Kenneth John. The Nature of Physical Geography. 1. publ. Arnold, 1985.