United States. Bureau of Community Environmental Management. (1971). Environmental health planning. For sale by the Supt. of Docs., U.S. Govt. Print. Off.].
Chicago-viite (17. p.)United States. Bureau of Community Environmental Management. Environmental Health Planning. [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971.
MLA-viite (9. p.)United States. Bureau of Community Environmental Management. Environmental Health Planning. For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.