"egan, gerard . "
the skilled helper:a problem-managament and opportunity-deve: lopment :approach to helping/ gerard.. egan - 8 ed. - usa : brooks/cole 2007. - "xii, 396p.; 23 cm."
13:978-0-495-12795-5
management--
658. 403 ega
the skilled helper:a problem-managament and opportunity-deve: lopment :approach to helping/ gerard.. egan - 8 ed. - usa : brooks/cole 2007. - "xii, 396p.; 23 cm."
13:978-0-495-12795-5
management--
658. 403 ega