APA (7th ed.) Citation

National Council of Teachers of Mathematics & Lindquist, M. M. (1987). Learning and teaching geometry, K-12. NCTM.

Chicago Style (17th ed.) Citation

National Council of Teachers of Mathematics and Mary Montgomery Lindquist. Learning and Teaching Geometry, K-12. Reston, VA: NCTM, 1987.

MLA (9th ed.) Citation

National Council of Teachers of Mathematics and Mary Montgomery Lindquist. Learning and Teaching Geometry, K-12. NCTM, 1987.