Ackert, P. (2005). Concepts and comments. Boston, MA: Thomson Heinle.
Chicago Style CitationAckert, Patricia. Concepts and Comments. Boston, MA: Thomson Heinle, 2005.
Cita MLAAckert, Patricia. Concepts and Comments. Boston, MA: Thomson Heinle, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.