توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Gailan, T. K. P. (1989). Descriptive statistics (Revised edition.). Learning Resources Unit, National Teacher Training Center for the Health Professions, University of the Philippines Manila.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Gailan, Tarlochan Kaur Pabla. Descriptive Statistics. Revised edition. Manila: Learning Resources Unit, National Teacher Training Center for the Health Professions, University of the Philippines Manila, 1989.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Gailan, Tarlochan Kaur Pabla. Descriptive Statistics. Revised edition. Learning Resources Unit, National Teacher Training Center for the Health Professions, University of the Philippines Manila, 1989.