Gaya APA
Cowan, Henry J., Smith, Peter R.. (1983).
Environmental systems .
United States Of America:
Van Nostrand Reinhold Company .
Gaya Chicago
Cowan, Henry J., Smith, Peter R..
Environmental systems.
United States Of America:
Van Nostrand Reinhold Company ,
1983.
Text.
Gaya MLA
Cowan, Henry J., Smith, Peter R..
Environmental systems.
United States Of America:
Van Nostrand Reinhold Company ,
1983.
Text.
Gaya Turabian
Cowan, Henry J., Smith, Peter R..
Environmental systems.
United States Of America:
Van Nostrand Reinhold Company ,
1983.
Print.