Παραπομπή APA

Hill, V. E. (2000). Groups and characters. Chapman & Hall/CRC.

Παραπομπή Chicago Style

Hill, Victor E. Groups and Characters. Boca Raton, Fla.: Chapman & Hall/CRC, 2000.

Παραπομπή MLA

Hill, Victor E. Groups and Characters. Chapman & Hall/CRC, 2000.