@book{133278,
	author = {Sundel, Martin},
	title = {Individual change through small groups},
	publisher = {Free Press},
	year = {1985},
	address = {New York},
	edition = {2d. ed.},
	note = {Includes six rev. and updated papers published in 1967 under title: Readings in group work practice, edited by R. D. Vinter.}
}