Allen, H. B. (1972). Teaching English as a Second Languages. Mcgraw -Hill INC.
Chicago Style citaatAllen, Harold B. Teaching English As a Second Languages. Mcgraw -Hill INC, 1972.
MLA citatieAllen, Harold B. Teaching English As a Second Languages. Mcgraw -Hill INC, 1972.
Let op: Deze citaties zijn niet altijd 100% accuraat.