Cita APA

Veblen, O., & Young, J. W. (1938). Projective geometry. Blaisdell.

Citación estilo Chicago

Veblen, Oswald, and John Wesley Young. Projective Geometry. New York: Blaisdell, 1938.

Cita MLA

Veblen, Oswald, and John Wesley Young. Projective Geometry. New York: Blaisdell, 1938.