توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

United States. President, 1969- (Nixon), & United States. Council on Environmental Quality. (1972). The President's 1972 environmental program. Government Printing Office.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

United States. President, 1969- (Nixon), و United States. Council on Environmental Quality. The President's 1972 Environmental Program. Washington: Government Printing Office, 1972.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

United States. President, 1969- (Nixon), و United States. Council on Environmental Quality. The President's 1972 Environmental Program. Government Printing Office, 1972.