30-second psychology : the 50 most thought-provoking psychology theories, each explained in half a minute / editor, Christian Jarrett ; contributors, Vaughan Bell ... [et al.]. Thirty second psychology Jarrett, Christian. Bell, Vaughan. Psychology. 150 23 PLP Includes bibliographical references (p. 154-155) and index. Miller Point, N.S.W. : Pier 9, 2011. 2011. 2011 Text 160 p. : eng