Gilbert, S. D. (1972). Three years to grow: Guidance for your child's first three years. Parents' Magazine Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Gilbert, Sara D. Three Years to Grow: Guidance for Your Child's First Three Years. New York: Parents' Magazine Press, 1972.
Παραπομπή σε μορφή MLA (8th εκδ.)Gilbert, Sara D. Three Years to Grow: Guidance for Your Child's First Three Years. Parents' Magazine Press, 1972.
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