توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Arpan, J. S., & Ricks, D. A. (1979). Directory of foreign manufacturers in the United States (2d ed.). Publishing Services Division, College of Business Administration, Georgia State University.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Arpan, Jeffrey S., و David A. Ricks. Directory of Foreign Manufacturers in the United States. 2d ed. Atlanta: Publishing Services Division, College of Business Administration, Georgia State University, 1979.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Arpan, Jeffrey S., و David A. Ricks. Directory of Foreign Manufacturers in the United States. 2d ed. Publishing Services Division, College of Business Administration, Georgia State University, 1979.