Cita APA (7a ed.)

Norman, S. (1982). We mean business: An elementary course in business english : students' book. Longman.

Cita Chicago Style (17a ed.)

Norman, Susan. We Mean Business: An Elementary Course in Business English : Students' Book. London: Longman, 1982.

Cita MLA (9a ed.)

Norman, Susan. We Mean Business: An Elementary Course in Business English : Students' Book. Longman, 1982.