APA (7th ed.) Citation

Schaaf, W. L. (1987). The high school mathematics library (8th ed.). National Council of Teachers of Mathematics.

Chicago Style (17th ed.) Citation

Schaaf, William L. The High School Mathematics Library. 8th ed. Reston, Va.: National Council of Teachers of Mathematics, 1987.

MLA (8th ed.) Citation

Schaaf, William L. The High School Mathematics Library. 8th ed. National Council of Teachers of Mathematics, 1987.

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