Eckenfelder, W. W. (1989). Industrial water pollution control. Singapore.
Trích dẫn kiểu ChicagoEckenfelder, W. Wesley. Industrial Water Pollution Control. Singapore, 1989.
MLA引文Eckenfelder, W. Wesley. Industrial Water Pollution Control. Singapore, 1989.
警告:這些引文格式不一定是100%准確.