Harris, D. P. (1969). Testing english as a second language. New York , Estados Unidos de América: McGraw Hill.
Chicago Style CitationHarris, David P. Testing English As a Second Language. New York , Estados Unidos de América: McGraw Hill, 1969.
MLA CitationHarris, David P. Testing English As a Second Language. New York , Estados Unidos de América: McGraw Hill, 1969.
Warning: These citations may not always be 100% accurate.