Water system operations
Subtitle: state of Oklahoma certification study guide.
Contributors: Oklahoma. Dept. of Environmental Quality. Operator Certification Unit.
Publisher: Oklahoma Dept. of Environmental Quality, Operator Certification Unit
Published: 2004
Place of publication: Oklahoma City, OK
Language: eng
Number of pages: 164
Subjects: Water -- Purification; Water treatment plants -- Certification -- Oklahoma; Environmental management -- Oklahoma
Other titles: State of Oklahoma certification study guide; Certification study guide; Water system operations certification study guide
Notes: Cover title.