توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Costes, A. F. (1975). Trisecting an angle by the use of a ruler and a compass: An approximation method [microform]. Photoduplication Service, University of the Philippines Library.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Costes, Amado F. Trisecting an Angle by the Use of a Ruler and a Compass: An Approximation Method [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Costes, Amado F. Trisecting an Angle by the Use of a Ruler and a Compass: An Approximation Method [microform]. Photoduplication Service, University of the Philippines Library, 1975.