Ruth Gairns. (2002). Natural english (intermediate student's book). Oxford, NY: Oxford Univ. Press.
Chicago Style citaatRuth Gairns. Natural English (intermediate Student's Book). Oxford, NY: Oxford Univ. Press, 2002.
MLA citatieRuth Gairns. Natural English (intermediate Student's Book). Oxford, NY: Oxford Univ. Press, 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.