Zero to Three (Organization) & National Center for Clinical Infant Programs (U.S.). Zero to three. National Center for Clinical Infant Programs.
Chicago Style (17. basım) AtıfZero to Three (Organization) ve National Center for Clinical Infant Programs (U.S.). Zero to Three. Washington, D.C.: National Center for Clinical Infant Programs.
MLA (9th ed.) AtıfZero to Three (Organization) ve National Center for Clinical Infant Programs (U.S.). Zero to Three. National Center for Clinical Infant Programs.
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