APA

,, . (1997). Environment accounting and valuation: A primer for developing countries. New York: United Nations.

Chicago

,, . 1997. Environment accounting and valuation: A primer for developing countries. New York: United Nations.

Harvard

,, . (1997). Environment accounting and valuation: A primer for developing countries. New York: United Nations.

MLA

,, . Environment accounting and valuation: A primer for developing countries. New York: United Nations. 1997.