Cita APA

World Resources Institute, The United Nations Development Programme, & The United Nations Environment Programme. (1994). World resources 1994-1995. New York: Oxford University Press.

Citación estilo Chicago

World Resources Institute, The United Nations Development Programme, and The United Nations Environment Programme. World Resources 1994-1995. New York: Oxford University Press, 1994.

Cita MLA

World Resources Institute, The United Nations Development Programme, and The United Nations Environment Programme. World Resources 1994-1995. New York: Oxford University Press, 1994.