Author / Creator
Spencer, Amy, 1971-
Subject
Positive psychology Optimism Happiness
Publication Information
New York [etc.] : Penguin Group, 2012
Format:
Books
ISBN
9780399537271
Author / Creator
Style, Charlotte
Subject
Positive psychology Happiness Optimism Motivation (Psychology)
Publication Information
London [etc.] : Pearson/Prentice Hall, 2011
Format:
Books
ISBN
9780273738213