The achilles syndrome : overcoming the secret fear of failure /

gan Clarkson, Petruska, 1947- .
Cyhoeddwyd 1994

Transactional analysis psychotherapy : an integrated approach /

gan Clarkson, Petruska, 1947-.
Cyhoeddwyd 1992

Counselling psychology : integrating theory, research, and supervised practice /

Cyhoeddwyd 1998

The handbook of psychotherapy /

Cyhoeddwyd 1994