Allen, E. D., & Valette, R. M. (1977). Classroom techniques: Foreign languages and English as a second language. Harcourt Brace Jovanovich.
芝加哥风格引文Allen, Edward David, 与 Rebecca M. Valette. Classroom Techniques: Foreign Languages and English as a Second Language. New York: Harcourt Brace Jovanovich, 1977.
MLA引文Allen, Edward David, 与 Rebecca M. Valette. Classroom Techniques: Foreign Languages and English as a Second Language. Harcourt Brace Jovanovich, 1977.
警告：这些引文格式不一定是100％准确.