توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Martin, J. E., & Heetderks, T. D. (1990). Two-tier compensation structures: Their impact on union employers and employees. W.E. Upjohn Institute for Employment Research.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Martin, James E., و Thomas D. Heetderks. Two-tier Compensation Structures: Their Impact on Union Employers and Employees. Kalamazoo, Mich: W.E. Upjohn Institute for Employment Research, 1990.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Martin, James E., و Thomas D. Heetderks. Two-tier Compensation Structures: Their Impact on Union Employers and Employees. W.E. Upjohn Institute for Employment Research, 1990.