Style de citation APA

David Riley. (1999). Business listening and speaking (Pre-intermediate). Essex, UK: Longman.

Style de citation Chicago

David Riley. Business Listening and Speaking (Pre-intermediate). Essex, UK: Longman, 1999.

Style de citation MLA

David Riley. Business Listening and Speaking (Pre-intermediate). Essex, UK: Longman, 1999.

Attention : ces citations peuvent ne pas être correctes à 100%.