Cita APA (7th ed.)

LILLEY,R. (2010). DEALING WITH DIFFICULT PEOPLE. KOGAN PAGE LTD.

Cita Chicago (17th ed.)

LILLEY,R. DEALING WITH DIFFICULT PEOPLE. NEW-YORK: KOGAN PAGE LTD, 2010.

Cita MLA (9th ed.)

LILLEY,R. DEALING WITH DIFFICULT PEOPLE. KOGAN PAGE LTD, 2010.