Gairns, R., & Redman, S. (2006). Natural English: Elementary student's book. Oxford University Press.
Citación estilo ChicagoGairns, Ruth, and Stuart Redman. Natural English: Elementary Student's Book. Oxford: Oxford University Press, 2006.
Cita MLAGairns, Ruth, and Stuart Redman. Natural English: Elementary Student's Book. Oxford University Press, 2006.
Warning: These citations may not always be 100% accurate.