Citazione Stile APA (7a Edizione)

Warriner, J. E. (1977). English grammar and composition: Fourth course (Heritage ed.). HBJ.

Citazione stile Chigago Style (17a edizione)

Warriner, John E. English Grammar and Composition: Fourth Course. Heritage ed. New York: HBJ, 1977.

Citatione MLA (9a ed.)

Warriner, John E. English Grammar and Composition: Fourth Course. Heritage ed. HBJ, 1977.