First progress report on training and licensing of water and sewage works operators in Ontario 1973-1977.
Contributors: Ontario. Ministry of the Environment.
Publisher: Ontario Ministry of the Environment
Published: 1977
Place of publication: [Toronto]
Language: eng
Number of pages: 27
Subjects: Sanitary engineering -- Ontario.; Sanitary engineering -- Study and teaching -- Ontario.; Sewage -- Purification.; Water -- Purification.
Notes: Cover title.

Includes bibliographical references.