Παραπομπή σε μορφή APA (7η εκδ.)

Johnson, R. A. (1960). Advanced Euclidean geometry: An elementary treatise on the geometry of the triangle and the circle. Dover Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Johnson, Roger A. Advanced Euclidean Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. New York: Dover Publications, 1960.

Παραπομπή σε μορφή MLA (9th εκδ.)

Johnson, Roger A. Advanced Euclidean Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Dover Publications, 1960.