Folds, V., & Victoria Folds. (2008). Three-step tray tasking: Logic & critical thinking activities for young children. Clifton Park, NY: Thomson Delmar Learning.
Chicago Style aipamenaFolds, Victoria, và Victoria Folds. Three-step Tray Tasking: Logic & Critical Thinking Activities for Young Children. Clifton Park, NY: Thomson Delmar Learning, 2008.
MLA aipamenaFolds, Victoria, và Victoria Folds. Three-step Tray Tasking: Logic & Critical Thinking Activities for Young Children. Clifton Park, NY: Thomson Delmar Learning, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.