Cita APA (7th ed.)
Ball, R. W. (1963). Principles of abstract algebra. Holt, Rinehart and Winston, INC..
Cita Chicago (17th ed.)
Ball, Richard W. Principles of Abstract Algebra. New York: Holt, Rinehart and Winston, INC., 1963.
Cita MLA (9th ed.)
Ball, Richard W. Principles of Abstract Algebra. Holt, Rinehart and Winston, INC., 1963.
Atenció: Aquestes cites poden no estar 100% correctes.