Dyfyniad APA

Gairns, R., & Redman, S. (2002). Natural english: Intermediate student's book. Oxford: Oxford Univ. Press.

Dyfyniad Arddull Chicago

Gairns, Ruth, và Stuart Redman. Natural English: Intermediate Student's Book. Oxford: Oxford Univ. Press, 2002.

Dyfyniad MLA

Gairns, Ruth, và Stuart Redman. Natural English: Intermediate Student's Book. Oxford: Oxford Univ. Press, 2002.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.