Citazione Stile APA (7a Edizione)

Waters, M., & Waters, A. (1995). Study tasks in inglish: Teacher's book. Cambridge University.

Citazione stile Chigago Style (17a edizione)

Waters, Mary, e Alan Waters. Study Tasks in Inglish: Teacher's Book. Cambridge: Cambridge University, 1995.

Citatione MLA (9a ed.)

Waters, Mary, e Alan Waters. Study Tasks in Inglish: Teacher's Book. Cambridge University, 1995.