Cita APA

Stone, R. D. 1., & Wright, M. 1. (1991). Wildlands and human needs: Reports from the field. Baltimore, Md.: WWF.

Citación estilo Chicago

Stone, Roger D. 1934-, y Michael 1941- Wright. Wildlands and Human Needs: Reports From the Field. Baltimore, Md.: WWF, 1991.

Cita MLA

Stone, Roger D. 1934-, y Michael 1941- Wright. Wildlands and Human Needs: Reports From the Field. Baltimore, Md.: WWF, 1991.