توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Carag, A. R. (1974). A study of the problems in the use of English in the transition grade in Cotabato Division II [microform]. Photoduplication Service, University of the Philippines Library.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Carag, Aurora Riego. A Study of the Problems in the Use of English in the Transition Grade in Cotabato Division II [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Carag, Aurora Riego. A Study of the Problems in the Use of English in the Transition Grade in Cotabato Division II [microform]. Photoduplication Service, University of the Philippines Library, 1974.