Gayle and Norma Sheffield 50th Anniversary BookDouglas Sheffield, Stephen Sheffield, Linda Dunn, Barbara George, Suzanne Tanner · First published 2014Open the Tome
Teaching and learning mathematicsLinda Jensen Sheffield, Douglas E. Cruikshank · First published 2004Open the Tome
Teaching and learning elementary and middle school mathematicsLinda Jensen Sheffield, Douglas E. Cruikshank · First published 1996Open the Tome
