Cita APA (7a ed.)

Haag, V. H., Hardgrove, C. E., & Hill, S. A. (1970). Elementary geometry. Addison-Wesley Pub. Co.

Cita Chicago Style (17a ed.)

Haag, Vincent H., Clarence Ethel Hardgrove, y Shirley A. Hill. Elementary Geometry. Reading, Mass: Addison-Wesley Pub. Co, 1970.

Cita MLA (9a ed.)

Haag, Vincent H., et al. Elementary Geometry. Addison-Wesley Pub. Co, 1970.