APA

Parametrix I., International Copper Association, .Diffuse sources of environmental copper in the United States. New York, New York: Copper Development Association.

Chicago

Parametrix Inc, International Copper Association, .Diffuse sources of environmental copper in the United States. New York, New York: Copper Development Association.

Harvard

Parametrix I., International Copper Association, .Diffuse sources of environmental copper in the United States. New York, New York: Copper Development Association.

MLA

Parametrix Inc, International Copper Association, .New York, New York: Copper Development Association. .