A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Contrary to a statement made in “Operator Certification: 1980 Status Report” (JOURNAL AWWA December 1981), certification of individual waste treatment plant operators is not mandatory in the Commonwealth of Pennsylvania.
Contrary to a statement made in “Operator Certification: 1980 Status Report” (JOURNAL AWWA December 1981), certification of individual waste treatment plant operators is not mandatory in the Commonwealth of Pennsylvania.
Operator Certification
Eberhardt, William A. (author)
1982-06-01
1 pages
Article (Journal)
Electronic Resource
English
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