.Skrentner, R. G. (1988). Instrumentation handbook for water & wastewater treatment plants. Lewis Publishers.
Chicago-referens (17:e uppl.).Skrentner, Robert G. Instrumentation Handbook for Water & Wastewater Treatment Plants. Chelsea, Mich.: Lewis Publishers, 1988.
MLA-referens (9:e uppl.).Skrentner, Robert G. Instrumentation Handbook for Water & Wastewater Treatment Plants. Lewis Publishers, 1988.