APA aipamena

Pfafflin, J. R., & Ziegler, E. N. (1992). Encyclopedia of environmental science and engineering (3rd ed., rev. and updated.). Gordon and Breach Science Publishers.

Chicago Style aipamena

Pfafflin, J. R., and E. N. Ziegler. Encyclopedia of Environmental Science and Engineering. 3rd ed., rev. and updated. Philadelphia: Gordon and Breach Science Publishers, 1992.

MLA aipamena

Pfafflin, J. R., and E. N. Ziegler. Encyclopedia of Environmental Science and Engineering. 3rd ed., rev. and updated. Gordon and Breach Science Publishers, 1992.