توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Newman, P., & Allen, R. H. (1967). Population growth rates and economic development in Nicaragua, prepared for the government of Nicaragua and USAID Nicaragua. Robert R. Nathan Associates.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Newman, Peter, و R. H. Allen. Population Growth Rates and Economic Development in Nicaragua, Prepared for the Government of Nicaragua and USAID Nicaragua. Washington, D. C: Robert R. Nathan Associates, 1967.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Newman, Peter, و R. H. Allen. Population Growth Rates and Economic Development in Nicaragua, Prepared for the Government of Nicaragua and USAID Nicaragua. Robert R. Nathan Associates, 1967.