APA (7th ed.) Citation

National Council of Teachers of Mathematics. (1969). Historical topics for the mathematics classroom. [publisher not identified].

Chicago Style (17th ed.) Citation

National Council of Teachers of Mathematics. Historical Topics for the Mathematics Classroom. Washington: [publisher not identified], 1969.

MLA (9th ed.) Citation

National Council of Teachers of Mathematics. Historical Topics for the Mathematics Classroom. [publisher not identified], 1969.

Warning: These citations may not always be 100% accurate.