APA (7th ed.) Citation

Winger, R. (1923). An Introduction to projective geometry. D. C. Heath.

Chicago Style (17th ed.) Citation

Winger, R.M. An Introduction to Projective Geometry. Boston: D. C. Heath, 1923.

MLA (9th ed.) Citation

Winger, R.M. An Introduction to Projective Geometry. D. C. Heath, 1923.

Warning: These citations may not always be 100% accurate.