Gaya APA

Wills, Ian. (1997). Economics and the Environment . Australia: Allen & Unwin.

Gaya Chicago

Wills, Ian. Economics and the Environment. Australia: Allen & Unwin, 1997. Text.

Gaya MLA

Wills, Ian. Economics and the Environment. Australia: Allen & Unwin, 1997. Text.

Gaya Turabian

Wills, Ian. Economics and the Environment. Australia: Allen & Unwin, 1997. Print.