United States. Advisory Commission on Intergovernmental Relations. (1971). The quest for environmental quality: Federal and State action, 1969-70, annotated bibliography. U.S. Govt. Print. Off.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Advisory Commission on Intergovernmental Relations. The Quest for Environmental Quality: Federal and State Action, 1969-70, Annotated Bibliography. Washington, D. C: U.S. Govt. Print. Off, 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United States. Advisory Commission on Intergovernmental Relations. The Quest for Environmental Quality: Federal and State Action, 1969-70, Annotated Bibliography. U.S. Govt. Print. Off, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.