Autor: Douglas Fisher, 19 titluri

Douglas Fisher,Nancy Frey,John Hattie,Marisol C. Thayre

Douglas Fisher,Nancy Frey,Russell J. Quaglia,Dominique Smith,Lisa L. Lande

Douglas Fisher,Nancy Frey,Rachelle S. Savitz

Douglas Fisher,Nancy Frey,Diane K. Lapp,Kelly Johnson

Douglas Fisher,William G. Brozo,Nancy Frey,Gay Ivey

Nancy Frey,John Hattie,Douglas B. Fisher

Dave Nagel,John T. Almarode,Douglas Fisher,Nancy Frey,Karen T. Flories

John T. Almarode,Douglas B. Fisher,Joseph Assof,Sara Delano Moore,John Hattie,Nancy Frey