Cita APA (7a ed.)
Howe, B. (1987). Portfolio: Case Studies for Business English (1.Ed.). Longman Group UK.
Cita Chicago Style (17a ed.)
Howe, Brian. Portfolio: Case Studies for Business English. 1.Ed. London: Longman Group UK, 1987.
Cita MLA (9a ed.)
Howe, Brian. Portfolio: Case Studies for Business English. 1.Ed. Longman Group UK, 1987.
Precaución: Estas citas no son 100% exactas.