APA (7th ed.) Citation

Cowan & Smith. (1983). Environmental systems. Van Nostrand Reinhold.

Chicago Style (17th ed.) Citation

Cowan and Smith. Environmental Systems. New York: Van Nostrand Reinhold, 1983.

MLA (8th ed.) Citation

Cowan and Smith. Environmental Systems. Van Nostrand Reinhold, 1983.

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