United States. Bureau of Community Environmental Management. (1971). Environmental health planning. For sale by the Supt. of Docs., U.S. Govt. Print. Off.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Bureau of Community Environmental Management. Environmental Health Planning. [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited States. Bureau of Community Environmental Management. Environmental Health Planning. For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971.
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