توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Ackerman, S. B. (1951). Insurance: A practical guide. Various forms of coverage, policy contracts, and protection afforded purchasers (3rd ed.). Ronald Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ackerman, Saul Benton. Insurance: A Practical Guide. Various Forms of Coverage, Policy Contracts, and Protection Afforded Purchasers. 3rd ed. N.Y.: Ronald Press, 1951.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Ackerman, Saul Benton. Insurance: A Practical Guide. Various Forms of Coverage, Policy Contracts, and Protection Afforded Purchasers. 3rd ed. Ronald Press, 1951.