APA ציטוט

Pickering, K. T., & Owen, L. A. (1997). An introduction to global environmental issues (2nd ed.). Routledge.

Chicago Style (17th ed.) Citation

Pickering, Kevin T., and Lewis A. Owen. An Introduction to Global Environmental Issues. 2nd ed. London: Routledge, 1997.

ציטוט MLA

Pickering, Kevin T., and Lewis A. Owen. An Introduction to Global Environmental Issues. 2nd ed. Routledge, 1997.