Cita APA

Romeiser, J. B., Binkowski, D. D., & Febles, E. A. (2011). Learn to speak english: Workbook : the complete interactive learning solution. The Learning Company.

Chicago Style Citation

Romeiser, John B., Donna Deans Binkowski, i Eduardo A. Febles. Learn to Speak English: Workbook : The Complete Interactive Learning Solution. The Learning Company, 2011.

Cita MLA

Romeiser, John B., Donna Deans Binkowski, i Eduardo A. Febles. Learn to Speak English: Workbook : The Complete Interactive Learning Solution. The Learning Company, 2011.