Dyfyniad APA

Lilley, R. (2006). Dealing with difficult people. Kogan pages.

Dyfyniad Arddull Chicago

Lilley, Roy. Dealing with Difficult People. New Delhi: Kogan pages, 2006.

Dyfyniad MLA

Lilley, Roy. Dealing with Difficult People. Kogan pages, 2006.

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