Preliminary report on "standards of purity" of sewage effluents.
By: V. M. Ehlers, sanitary engineer.
Contributors: Ehlers, V. M.
Publisher: Von Boeckmann-Jones co., printers
Published: 1915
Place of publication: Austin, Tex
Language: eng
Number of pages: 22
Subjects: Sewage -- Purification.
Notes: Submitted to the Texas state board of health.