Harold B. Allen. (1965). Teaching English as a second language. New York: McGraw-Hill.
Chicago-stil citatHarold B. Allen. Teaching English As a Second Language. New York: McGraw-Hill, 1965.
MLA-referensHarold B. Allen. Teaching English As a Second Language. New York: McGraw-Hill, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.