APA Citatie

Shukla, S. K., & Srivastava, P. R. (1992). Human environment: An analysis.

Chicago Style citaat

Shukla, S K., en P R. Srivastava. Human Environment: An Analysis. New Delhi, Commonwealth Publsihers, 1992.

MLA citatie

Shukla, S K., en P R. Srivastava. Human Environment: An Analysis. 1992.