Citazione Stile APA (7a Edizione)

Gomm H. Helena. (2001). Inside Out. Upper Intermediate: Teacher's Book. Oxford, Macmillan, 2001.

Citazione stile Chigago Style (17a edizione)

Gomm H. Helena. Inside Out. Upper Intermediate: Teacher's Book. Oxford, Macmillan, 2001, 2001.

Citatione MLA (9a ed.)

Gomm H. Helena. Inside Out. Upper Intermediate: Teacher's Book. Oxford, Macmillan, 2001, 2001.