Cita APA (7a ed.)

Abelson, H., & DiSessa, A. A. (1982). Trutle geometry: The computer as a medium for exploring mathematics ([1st ed.] 4th printing.). MIT Press.

Cita Chicago Style (17a ed.)

Abelson, Harold, y Andrea A. DiSessa. Trutle Geometry: The Computer as a Medium for Exploring Mathematics. [1st ed.] 4th printing. Cambridge (Massachusetts): MIT Press, 1982.

Cita MLA (9a ed.)

Abelson, Harold, y Andrea A. DiSessa. Trutle Geometry: The Computer as a Medium for Exploring Mathematics. [1st ed.] 4th printing. MIT Press, 1982.