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Infancy : development from birth to age 3
Gross, Dana, (2008)
Johnson's your baby & toddler from birth to 3 years : from birth to 3 years ; [a step-by-step guide to your child's development]
Holland, Katy, (2004)
Infant and toddler development and responsive program planning : a relationship-based approach
Wittmer, Donna Sasse, (2010)