APA (7e ed.) Bronvermelding

Nichols, E. D., & Swain, R. L. (1971). Mathematics for the elementary school teacher. Holt.

Chicago (17e ed.) Bronvermelding

Nichols, Eugene Douglas, en Robert L. Swain. Mathematics for the Elementary School Teacher. New York: Holt, 1971.

MLA (9e ed.) Bronvermelding

Nichols, Eugene Douglas, en Robert L. Swain. Mathematics for the Elementary School Teacher. Holt, 1971.