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by Chris Hobbs
by Grove, David R.; Greene, Gilbert J.; Lee, Mo Yee
by Branch, Rhena; Willson, Rob
by Moravcik
by Espinosa, Linda
by Moravcik, Eva; Nolte, Sherry
by Weisz, John R.; Kazdin, Alan E.
by Seligman, Milton; Darling, Rosalyn Benjamin
by Anderson, Frances E.
by Campbell, Vander Linden & Palisano