Cita APA

Astroff, M. T. (1995). Conversation sales and services. U.S.A: Waterbury.

Chicago Style Citation

Astroff, Milton T. Conversation Sales and Services. U.S.A: Waterbury, 1995.

Cita MLA

Astroff, Milton T. Conversation Sales and Services. U.S.A: Waterbury, 1995.

Atenció: Aquestes cites poden no estar 100% correctes.