Helgesen, M. (2007). Practical English language teaching: Listening. New York: McGraw-Hill.
Chicago Style citaatHelgesen, Marc. Practical English Language Teaching: Listening. New York: McGraw-Hill, 2007.
MLA citatieHelgesen, Marc. Practical English Language Teaching: Listening. New York: McGraw-Hill, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.