The Compleat Observer?: A Field Research Guide to Observation Editat de Dr Jack Sanger et al. 23 feb 1996 Paperback Preț: 493.47 lei 6-8 săpt.
Young Children, Videos and Computer Games: Issues for Teachers and Parents Autor Jack Sanger et al. 30 apr 1997 Paperback Preț: 436.16 lei 6-8 săpt.