Animals associated with potable water supplies
Subtitle: operators' identification guide.
By: Prepared for the American Water Works Association by William M. Ingram and Alfred F. Bartsch.
Contributors: Bartsch, A. F. 1913-
Series: AWWA manual ;; M7
Publisher: American Water Works Association
Published: 1961
Place of publication: New York
Language: eng
Number of pages: 31
Subjects: Sanitary microbiology.; Aquatic invertebrates -- Identification.; Drinking water -- Contamination.
Notes: Includes bibliographical references.