Bentzen, W. R. (2009). Seeing young children: A guide to observing and recording behavior (6th ed.). Thomson/Delmar Learning.
Citace podle Chicago (17th ed.)Bentzen, Warren R. Seeing Young Children: A Guide to Observing and Recording Behavior. 6th ed. Clifton Park, N.Y: Thomson/Delmar Learning, 2009.
Citace podle MLA (9th ed.)Bentzen, Warren R. Seeing Young Children: A Guide to Observing and Recording Behavior. 6th ed. Thomson/Delmar Learning, 2009.
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