Cita APA

Orr, D. W. 1. (1994). Earth in mind: On education, environment and the human prospect. Washington, D.C.: Island Press.

Citación estilo Chicago

Orr, David W. 1944-. Earth in Mind: On Education, Environment and the Human Prospect. Washington, D.C.: Island Press, 1994.

Cita MLA

Orr, David W. 1944-. Earth in Mind: On Education, Environment and the Human Prospect. Washington, D.C.: Island Press, 1994.