Lilley , R. (2002). Dealing with Difficult People. Kogan Page Limited.
Style de citation Chicago (17e éd.)Lilley , Roy. Dealing with Difficult People. United kingdom: Kogan Page Limited, 2002.
Style de citation MLA (9e éd.)Lilley , Roy. Dealing with Difficult People. Kogan Page Limited, 2002.
Attention : ces citations peuvent ne pas être correctes à 100%.