Dyfyniad APA

Rich, B. (1960). Principles and problems of elementary algebra. McGraw Hill.

Dyfyniad Arddull Chicago

Rich, Barnett. Principles and Problems of Elementary Algebra. New Delhi: McGraw Hill, 1960.

Dyfyniad MLA

Rich, Barnett. Principles and Problems of Elementary Algebra. McGraw Hill, 1960.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.