Citazione Stile APA (7a Edizione)

Harris, D. P. (1969). Testing English as a second language. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Harris, David P. Testing English as a Second Language. New York: McGraw-Hill, 1969.

Citatione MLA (8a ed.)

Harris, David P. Testing English as a Second Language. McGraw-Hill, 1969.