Manual for sewage plant operators.
By: Manual Committee:  Clayton H. Billings, chairman [and others]  Editor:  Clayton H. Billings.
Contributors: Billings, Clayton H., ed.
Edition: [2d ed.]
Publisher: Distributed through the cooperation of the Texas State Dept. of Health and the Texas Water and Sanitation Research Foundation
Published: 1955
Place of publication: Austin
Language: eng
Number of pages: 511
Subjects: Sewage disposal; Sewage -- Purification