PERGAMON GENERAL PSYCHOLOGY SERIES 56 527,559 HERSEN MICHEL, BARLOW DAVID H. Single-case experimental designs; strategies for studying behavior change. With an invited chapter on statistical analyses by Alan E.Kazdin. New York 1976 Pergamon Press 8° s, XII, nib. 2, 374. Pergamon General Psychology Series 56 Pergamon International Library of Science Techno logy, Engineering and Social Studies