Rees Shan. (1991). Assertion training: How to be Who You Really Are. Tavistock Routeledge.
Chicago Edition CitationRees Shan. Assertion Training: How to Be Who You Really Are. London: Tavistock Routeledge, 1991.
Cita MLARees Shan. Assertion Training: How to Be Who You Really Are. Tavistock Routeledge, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.