APA (7th ed.) Citation

(1970). Teaching msthematics in the elementary school. National association of elementary school.

Chicago Style (17th ed.) Citation

Teaching Msthematics in the Elementary School. National association of elementary school, 1970.

MLA (8th ed.) Citation

Teaching Msthematics in the Elementary School. National association of elementary school, 1970.

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