UUp the DuffUp the Duffde Kaz CookeMateriasParenting and child careEdiciones (1)Up the Duff (2009)Penguin Random House · inglés · ISBN 9780670072347Más obras de Kaz CookeRReal gorgeousReal gorgeous1995TTerrible UnderpantsTerrible UnderpantsWWanda-Linda Goes BeserkWanda-Linda Goes Beserk