APA (7e ed.) Bronvermelding

Freeman, A. M. (1979). The benefits of environmental improvement: Theory and practice. Published for Resources for the Future by Johns Hopkins University Press.

Chicago (17e ed.) Bronvermelding

Freeman, A. Myrick. The Benefits of Environmental Improvement: Theory and Practice. Baltimore: Published for Resources for the Future by Johns Hopkins University Press, 1979.

MLA (8e ed.) Bronvermelding

Freeman, A. Myrick. The Benefits of Environmental Improvement: Theory and Practice. Published for Resources for the Future by Johns Hopkins University Press, 1979.