APA (7th ed.) Citation

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.

Chicago Style (17th ed.) Citation

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.

MLA (9th ed.) Citation

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.