Powell Bert Circle of security intervention Enhancing attachment in early parent child relationship - New York Guilford Press U.S.A 2014 - xxviii, 396p. cm. ISBN: 9781593853143 (hbk) 3080.15 Standard No.: 25915 Source: 136, 28/03/2016, Mallika Books Textual Subjects--Topical Terms: PSYCHOLOGY Dewey Class. No.: S1, Q4