APA ציטוט

Nowlan, R. A., & Washburn, R. M. (1975). Geometry for teachers. Harper & Row.

Chicago Edition Citation

Nowlan, Robert A., and Robert M. Washburn. Geometry for Teachers. Harper & Row, 1975.

ציטוט MLA

Nowlan, Robert A., and Robert M. Washburn. Geometry for Teachers. Harper & Row, 1975.