Cita APA

Kaufman, D. G., & Franz, C. M. (1993). Biosphere 2000: Protecting our global environment. HarperCollins College Publishers.

Citación estilo Chicago

Kaufman, Donald G., and Cecilia M. Franz. Biosphere 2000: Protecting Our Global Environment. New York: HarperCollins College Publishers, 1993.

Cita MLA

Kaufman, Donald G., and Cecilia M. Franz. Biosphere 2000: Protecting Our Global Environment. HarperCollins College Publishers, 1993.

Warning: These citations may not always be 100% accurate.