Berko, R. M. (1989). Communicating: A social and career focus (4th ed.). Houghton Mifflin.
芝加哥风格引文Berko, Roy M. Communicating: A Social and Career Focus. 4th ed. Boston: Houghton Mifflin, 1989.
MLA引文Berko, Roy M. Communicating: A Social and Career Focus. 4th ed. Houghton Mifflin, 1989.
警告：这些引文格式不一定是100％准确.