por Walen, Susan R [autor] | Diguideppe, Raymond | Wessler, Richard L.
por Wessler, Ruth, 1938 [autor] | Wesller, Richard.
por Wessler, Richard L [autor] | Hankin, Sheenah [autor] | Stern, Jonathan [autor] | González Raga, David [traductor] | González Sanvisens, Laura [colaborador] | Wessler, Richard L. Succeeding with difficult clients : applications of cognitive appraisal therapy.