ISBN 0-385-50847-6. Berryman, John. The Development of Anne Frank. Enzer, Hyman Aaron; Solotaroff-Enzer, Sandra (编). Anne Frank: Reflections on her life
Proceedings of the North American Veterinary Conference. 2006 [2007-03-31]. Berryman Institute: Managing Wild Pigs (页面存档备份,存于互联网档案馆) Finnish Food Safety Authority