Cita APA (7th ed.)

Adler, I. (1975). The impossible in mathematics. National Council of Teachers of Mathematics.

Cita Chicago (17th ed.)

Adler, Irving. The Impossible in Mathematics. Reston, Va.: National Council of Teachers of Mathematics, 1975.

Cita MLA (8th ed.)

Adler, Irving. The Impossible in Mathematics. National Council of Teachers of Mathematics, 1975.