Cita APA (7th ed.)

Spiegel, M. R., Lipschutz, S., & Spellman, D. (2009). Group Theory (2nd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Spiegel, Murray R., Seymour Lipschutz, i Dennis Spellman. Group Theory. 2nd ed. New York: McGraw-Hill, 2009.

Cita MLA (9th ed.)

Spiegel, Murray R., et al. Group Theory. 2nd ed. McGraw-Hill, 2009.