APA (7th ed.) Citation

United States. Department of Health, Education, and Welfare. (1927). Studies of efficiency of water purification processes: I. Results obtained from preliminary study of Cincinnati and Louisville municipal filtration plants; II and III. Results obtained from collective survey of 17 municipal filtration plants. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Health, Education, and Welfare. Studies of Efficiency of Water Purification Processes: I. Results Obtained from Preliminary Study of Cincinnati and Louisville Municipal Filtration Plants; II and III. Results Obtained from Collective Survey of 17 Municipal Filtration Plants. [Washington]: GPO, 1927.

MLA (9th ed.) Citation

United States. Department of Health, Education, and Welfare. Studies of Efficiency of Water Purification Processes: I. Results Obtained from Preliminary Study of Cincinnati and Louisville Municipal Filtration Plants; II and III. Results Obtained from Collective Survey of 17 Municipal Filtration Plants. GPO, 1927.