Cita APA (7th ed.)
ebrary, Inc, Cooper, D. E., & Palmer, J. (1992). The environment in question: Ethics and global issues. Routledge.
Cita Chicago (17th ed.)
ebrary, Inc, David E. Cooper, i Joy Palmer. The Environment in Question: Ethics and Global Issues. London ; New York: Routledge, 1992.
Cita MLA (9th ed.)
ebrary, Inc, et al. The Environment in Question: Ethics and Global Issues. Routledge, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.