APA (7e ed.) Bronvermelding

Freeman, A. M. (2003). Measurement of environmental and resource values: Theory and methods. Resources for the Future.

Chicago (17e ed.) Bronvermelding

Freeman, A. Myrick. Measurement of Environmental and Resource Values: Theory and Methods. Washington, DC: Resources for the Future, 2003.

MLA (9e ed.) Bronvermelding

Freeman, A. Myrick. Measurement of Environmental and Resource Values: Theory and Methods. Resources for the Future, 2003.