APA (7th ed.) Citation

Vollmar, R. (1956). How to use films and filmstrips in mathematics classes. National Council of Teachers of Mathematics.

Chicago Style (17th ed.) Citation

Vollmar, Robert. How to Use Films and Filmstrips in Mathematics Classes. Washington, D.C.: National Council of Teachers of Mathematics, 1956.

MLA (8th ed.) Citation

Vollmar, Robert. How to Use Films and Filmstrips in Mathematics Classes. National Council of Teachers of Mathematics, 1956.

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