APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.