Cita APA (7th ed.)
Gallian, J. A. (1994). Contemporary abstract algebra (3rd ed.). D.C. Heath.
Cita Chicago (17th ed.)
Gallian, Joseph A. Contemporary Abstract Algebra. 3rd ed. Lexington, Mass.: D.C. Heath, 1994.
Cita MLA (9th ed.)
Gallian, Joseph A. Contemporary Abstract Algebra. 3rd ed. D.C. Heath, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.