Cita APA (7a ed.)

National Council of Teachers of Mathematics. (1957). Insights into modern mathematics. National Council of Teachers of Mathematics.

Cita Chicago Style (17a ed.)

National Council of Teachers of Mathematics. Insights into Modern Mathematics. Washington, D.C.: National Council of Teachers of Mathematics, 1957.

Cita MLA (9a ed.)

National Council of Teachers of Mathematics. Insights into Modern Mathematics. National Council of Teachers of Mathematics, 1957.