Παραπομπή σε μορφή APA (7η εκδ.)

Ayres, F. (1967). Schaum's outline of theory and problems of projective geometry. Schaum Publishing Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ayres, Frank. Schaum's Outline of Theory and Problems of Projective Geometry. New York: Schaum Publishing Company, 1967.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ayres, Frank. Schaum's Outline of Theory and Problems of Projective Geometry. Schaum Publishing Company, 1967.