Wastewater treatment operator training scheme
By: Ministry of Works and Development.
Edition: [rev. ed.]
Publisher: Ministry of Works and Development
Published: 1975
Place of publication: Wellington
Language: eng
Number of pages: 12
Subjects: Sewage -- Purification -- Study and teaching -- New Zealand.
Notes: First ed. published in 1958 under title: Sewage treatment plant operator training scheme.