Cita APA (7a ed.)
Pfafflin, J. R., & Ziegler, E. N. (1976). Encyclopedia of Environmental Science and Engineering. Gordon and Breach Science Publishers.
Cita Chicago Style (17a ed.)
Pfafflin, James R., y Edward N. Ziegler. Encyclopedia of Environmental Science and Engineering. New York: Gordon and Breach Science Publishers, 1976.
Cita MLA (9a ed.)
Pfafflin, James R., y Edward N. Ziegler. Encyclopedia of Environmental Science and Engineering. Gordon and Breach Science Publishers, 1976.
Precaución: Estas citas no son 100% exactas.