Citazione Stile APA (7a Edizione)

HARRIS, D. P. (1974). Testing english a second language. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

HARRIS, David P. Testing English a Second Language. Bombay: McGraw-Hill, 1974.

Citatione MLA (9a ed.)

HARRIS, David P. Testing English a Second Language. McGraw-Hill, 1974.