Citazione Stile APA (7a Edizione)

Frodesen, J., & Eyring, J. (2007). Grammar dimensions 4: Form-meaning-use (4a. ed.). Heinle Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Frodesen, Jan, e Janet Eyring. Grammar Dimensions 4: Form-meaning-use. 4a. ed. Boston: Heinle Cengage Learning, 2007.

Citatione MLA (9a ed.)

Frodesen, Jan, e Janet Eyring. Grammar Dimensions 4: Form-meaning-use. 4a. ed. Heinle Cengage Learning, 2007.