Παραπομπή APA

Gorini,, C. A. (2005). Facts on File: Geometry Handbook (1.). Checkmark Books.

Παραπομπή Chicago Style

Gorini,, Catherine A. Facts on File: Geometry Handbook. 1. New York: Checkmark Books, 2005.

Παραπομπή MLA

Gorini,, Catherine A. Facts on File: Geometry Handbook. 1. Checkmark Books, 2005.