APA-referens

Rich, B. (1963). Schaum's outline of principles and problems of plane geometry. McGraw Hill.

Chicago-stil citat

Rich, Barnett. Schaum's Outline of Principles and Problems of Plane Geometry. New York: McGraw Hill, 1963.

MLA-referens

Rich, Barnett. Schaum's Outline of Principles and Problems of Plane Geometry. McGraw Hill, 1963.

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