Allen, E. D., & Valette, R. M. (1977). Classroom techniques: Foreign languages and English as a second language. Harcourt Brace Jovanovich.
Citación estilo ChicagoAllen, Edward David, and Rebecca M. Valette. Classroom Techniques: Foreign Languages and English as a Second Language. New York: Harcourt Brace Jovanovich, 1977.
Cita MLAAllen, Edward David, and Rebecca M. Valette. Classroom Techniques: Foreign Languages and English as a Second Language. Harcourt Brace Jovanovich, 1977.
Warning: These citations may not always be 100% accurate.