APA (7e ed.) Bronvermelding

ALLENDOERFER, C. B. (1971). Principles of arithmetic and geometry for elementaryschool teachers. The Macmillan co.

Chicago (17e ed.) Bronvermelding

ALLENDOERFER, Carl B. Principles of Arithmetic and Geometry for Elementaryschool Teachers. New York: The Macmillan co, 1971.

MLA (9e ed.) Bronvermelding

ALLENDOERFER, Carl B. Principles of Arithmetic and Geometry for Elementaryschool Teachers. The Macmillan co, 1971.