Elwyn, Glyn. Groups : a guide to small group work in healthcare, management, education and research / Glyn Elwyn, Trisha Greenhalgh and Fraser MacFarlane ; illustrated by Sian Koppel. - Abingdon : Radcliffe Medical, 2000. - viii, 320p. : ill. ; 22 cm. ISBN: 185775400X Nat. Bib. No.: GBA0X1410 bnb Dewey Class. No.: 658.402