Robert V. Kail et. Al. Essentials of Human Development: A Life-Span View - 2nd - Cengage learning - C1 . https://docs.google.com/spreadsheets/d/1xd8JApdT8D7frbT57A7JsPuR0Jhg761JqSioRg4jqQ4/edit?gid=0#gid=0 ISBN: 9781305504585 Dewey Class. No.: Cir.155/K13e