Cita APA

Backman, C. A., & Cromie, R. G. 1. (1971). Introduction to concepts of geometry. Englewood Cliffs, N.J.: Prentice Hall.

Citación estilo Chicago

Backman, Carl A., y Robert G. 1929- Cromie. Introduction to Concepts of Geometry. Englewood Cliffs, N.J.: Prentice Hall, 1971.

Cita MLA

Backman, Carl A., y Robert G. 1929- Cromie. Introduction to Concepts of Geometry. Englewood Cliffs, N.J.: Prentice Hall, 1971.