APA aipamena

Wills, I. A. (2007). Economics and the environment: A signalling and incentives approach (2nd ed.).

Chicago Style aipamena

Wills, Ian; Author. Economics and the Environment: A Signalling and Incentives Approach. 2nd ed. New Delhi, Viva Books Private Ltd, 2007.

MLA aipamena

Wills, Ian; Author. Economics and the Environment: A Signalling and Incentives Approach. 2nd ed. 2007.