APA (7th ed.) Citation

Gardiner, P. L. (1968). The nature of historical explanation. Oxford University Press.

Chicago Style (17th ed.) Citation

Gardiner, Patrick L. The Nature of Historical Explanation. London [etc.]: Oxford University Press, 1968.

MLA (9th ed.) Citation

Gardiner, Patrick L. The Nature of Historical Explanation. Oxford University Press, 1968.