Pfafflin, J. R., & Ziegler, E. N. (1992). Encyclopedia of environment science and engineering (Third edition, revised and updated.). Gordon and Breach Science Publisher.
Chicago Style (17th ed.) CitationPfafflin, James R., and Edward N. Ziegler. Encyclopedia of Environment Science and Engineering. Third edition, revised and updated. Philadelphia, Pennsylvania: Gordon and Breach Science Publisher, 1992.
ציטוט MLAPfafflin, James R., and Edward N. Ziegler. Encyclopedia of Environment Science and Engineering. Third edition, revised and updated. Gordon and Breach Science Publisher, 1992.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.