APA (7th ed.) Citation

Ley, D., & Ley, D. (1978). Humanistic geography: Prospects and problems. Croom Helm.

Chicago Style (17th ed.) Citation

Ley, David, and David;Samuels Ley. Humanistic Geography: Prospects and Problems. Croom Helm, 1978.

MLA (9th ed.) Citation

Ley, David, and David;Samuels Ley. Humanistic Geography: Prospects and Problems. Croom Helm, 1978.

Warning: These citations may not always be 100% accurate.