APA aipamena

Rich, B. (1963). Principles & problems of plane geometry. Schaum Pub. Co.

Chicago Style aipamena

Rich, Barnett. Principles & Problems of Plane Geometry. New York: Schaum Pub. Co, 1963.

MLA aipamena

Rich, Barnett. Principles & Problems of Plane Geometry. Schaum Pub. Co, 1963.