APA aipamena

Ayres, R. U., Button, K., & Nijkamp, P. (1999). Global aspects of the environment. Edward Elgar Pub. Ltd.

Chicago Style aipamena

Ayres, Robert U., Kenneth Button, and Peter Nijkamp. Global Aspects of the Environment. Cheltenham, U.K: Edward Elgar Pub. Ltd, 1999.

MLA aipamena

Ayres, Robert U., et al. Global Aspects of the Environment. Edward Elgar Pub. Ltd, 1999.