Fallow, L., & Griffiths, D. (2010). Head first 2D geometry. O'Reilly Media.
Chicago Style (17th ed.) CitationFallow, Lindsey, and Dawn Griffiths. Head First 2D Geometry. Sebastopol, Calif.: O'Reilly Media, 2010.
MLA (8th ed.) CitationFallow, Lindsey, and Dawn Griffiths. Head First 2D Geometry. O'Reilly Media, 2010.
Warning: These citations may not always be 100% accurate.