APA (7th ed.) Citation

Cowan, H. J. (1983). ENVIROMENTAL SYSTEMS. Van Nostrand Reinhold.

Chicago Style (17th ed.) Citation

Cowan, Henry J. ENVIROMENTAL SYSTEMS. Van Nostrand Reinhold, 1983.

MLA (8th ed.) Citation

Cowan, Henry J. ENVIROMENTAL SYSTEMS. Van Nostrand Reinhold, 1983.

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