United States. Bureau of Community Environmental Management. (1971). Environmental health planning. For sale by the Supt. of Docs., U.S. Govt. Print. Off.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Bureau of Community Environmental Management. Environmental Health Planning. [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United States. Bureau of Community Environmental Management. Environmental Health Planning. For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.