Bentzen, W. R. (2009). Seeing young children: A guide to observing and recording behavior (6th ed.). Thomson/Delmar Learning.
Chicago-referens (17:e uppl.)Bentzen, Warren R. Seeing Young Children: A Guide to Observing and Recording Behavior. 6th ed. Clifton Park, N.Y: Thomson/Delmar Learning, 2009.
MLA-referens (9:e uppl.)Bentzen, Warren R. Seeing Young Children: A Guide to Observing and Recording Behavior. 6th ed. Thomson/Delmar Learning, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.