Municipal and rural sanitation /
Ehlers, Victor M. 1884-1959.
Municipal and rural sanitation / [by] Victor M. Ehelrs [and] Ernest W. Steel. - 5th ed. - New York : McGraw-Hill, 1958. - 596 p.: illus. 24 cm.
57010904
Sanitation.
Sanitary engineering.
Public health.
Rural health.
628 / EHM 1958
Municipal and rural sanitation / [by] Victor M. Ehelrs [and] Ernest W. Steel. - 5th ed. - New York : McGraw-Hill, 1958. - 596 p.: illus. 24 cm.
57010904
Sanitation.
Sanitary engineering.
Public health.
Rural health.
628 / EHM 1958