APA

(1986). World resources 1986. An assessment of the resources base that supports the global economy. New York, N.Y: Basic Books.

Chicago

1986. World resources 1986. An assessment of the resources base that supports the global economy. New York, N.Y: Basic Books.

Harvard

(1986). World resources 1986. An assessment of the resources base that supports the global economy. New York, N.Y: Basic Books.

MLA

World resources 1986. An assessment of the resources base that supports the global economy. New York, N.Y: Basic Books. 1986.