Seibel, C., & Hodge, R. (1991). Building English structures: A communicative course in English. Prentice Hall Regents.
Citazione stile Chigago Style (17a edizione)Seibel, Chuck, e Russ Hodge. Building English Structures: A Communicative Course in English. Englewood Cliffs, N.J.: Prentice Hall Regents, 1991.
Citatione MLA (9a ed.)Seibel, Chuck, e Russ Hodge. Building English Structures: A Communicative Course in English. Prentice Hall Regents, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.