GEMS/Water operational guide
By: United Nations Environment Programme ... [et al.].
Publisher: World Health Organization
Published: 1978
Place of publication: Geneva
Language: eng
Subjects: Water quality; Measurement; Water quality monitoring stations
Other titles: Peter S. Thacher Environment Collection
Notes: At head of title: GEMS: Global Environment Monitoring System.

"ETS/78.5"--P. [1].

Includes bibliographical references.