Cita APA (7a ed.)

Norman, S. (1984). We're in business : english for commercial practice and international trade: Student's book ([3rd. imp.].). Longman.

Cita Chicago Style (17a ed.)

Norman, Susan. We're in Business : English for Commercial Practice and International Trade: Student's Book. [3rd. imp.]. London: Longman, 1984.

Cita MLA (9a ed.)

Norman, Susan. We're in Business : English for Commercial Practice and International Trade: Student's Book. [3rd. imp.]. Longman, 1984.