Cita APA (7th ed.)

Freeman, A. M. (1993). Measurement of environmental and resource values. Resources for the Future.

Cita Chicago (17th ed.)

Freeman, A. Myrick. Measurement of Environmental and Resource Values. Washington: Resources for the Future, 1993.

Cita MLA (9th ed.)

Freeman, A. Myrick. Measurement of Environmental and Resource Values. Resources for the Future, 1993.