Não informado. (1965). Water and pollution control. Southam Business Publications.
Chicago-viite (17. p.)Não informado. Water and Pollution Control. Don Mills, Canada: Southam Business Publications, 1965.
MLA-viite (8. p.)Não informado. Water and Pollution Control. Southam Business Publications, 1965.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.