Brieger, N. (1989). Early business contacts: Materials for developing listening and speaking skills for students of business English. Prentice Hall International UK.
Citazione stile Chigago Style (17a edizione)Brieger, Nick. Early Business Contacts: Materials for Developing Listening and Speaking Skills for Students of Business English. United Kingdom: Prentice Hall International UK, 1989.
Citatione MLA (9a ed.)Brieger, Nick. Early Business Contacts: Materials for Developing Listening and Speaking Skills for Students of Business English. Prentice Hall International UK, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.