APA Citation

Cowan, H. J., & Smith,Peter R. Environmental systems. New York: Van Nostrand Reinhold Com.Inc..

Chicago Style Citation

Cowan, Henry J., and Smith,Peter R. Environmental Systems. New York: Van Nostrand Reinhold Com.Inc..

MLA Citation

Cowan, Henry J., and Smith,Peter R. Environmental Systems. New York: Van Nostrand Reinhold Com.Inc..

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