Operator certification study guide
Subtitle: a workbook for treatment plant operators and distribution system personnel.
Contributors: American Water Works Association.
Edition: 3rd ed., rev.
Publisher: American Water Works Association
Published: 1989
Place of publication: Denver, CO
Language: eng
Number of pages: 139
Subjects: Water -- Purification -- Examinations, questions, etc; Water -- Distribution -- Examinations, questions, etc
Notes: Includes bibliographical references (p. 139).