Barbara Ann Nilsen. (2008). Week by week: Plans for documenting children's development. New York: Thomson/Delmar Learning.
শিকাগো স্টাইলে সাইটেশনBarbara Ann Nilsen. Week By Week: Plans for Documenting Children's Development. New York: Thomson/Delmar Learning, 2008.
এমএলএ সাইটেশনBarbara Ann Nilsen. Week By Week: Plans for Documenting Children's Development. New York: Thomson/Delmar Learning, 2008.
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