Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.