Gilbert, S. D. (1972). Three years to grow: Guidance for your child's first three years. Parents' Magazine Press.
Chicago-Zitierstil (17. Ausg.)Gilbert, Sara D. Three Years to Grow: Guidance for Your Child's First Three Years. New York: Parents' Magazine Press, 1972.
MLA-Zitierstil (9. Ausg.)Gilbert, Sara D. Three Years to Grow: Guidance for Your Child's First Three Years. Parents' Magazine Press, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.