Allen, H. B. (1972). Teaching English as a Second Languages. Mcgraw -Hill INC.
Chicago-stil citatAllen, Harold B. Teaching English As a Second Languages. Mcgraw -Hill INC, 1972.
MLA-referensAllen, Harold B. Teaching English As a Second Languages. Mcgraw -Hill INC, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.