Gallion,F. (1998). Contemporary Abstract Algebra (4th.). Narosa.
Cita Chicago (17th ed.)Gallion,F. Contemporary Abstract Algebra. 4th. New Delhi: Narosa, 1998.
Cita MLA (9th ed.)Gallion,F. Contemporary Abstract Algebra. 4th. Narosa, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.