Cita APA (7th ed.)
Bartik, T. J. (2014). From Preschool to Prosperity: The Economic Payoff to Early Childhood Education. W.E. Upjohn Institute for Employment Research.
Cita Chicago (17th ed.)
Bartik, Timothy J. From Preschool to Prosperity: The Economic Payoff to Early Childhood Education. Kalamazoo, Michigan: W.E. Upjohn Institute for Employment Research, 2014.
Cita MLA (9th ed.)
Bartik, Timothy J. From Preschool to Prosperity: The Economic Payoff to Early Childhood Education. W.E. Upjohn Institute for Employment Research, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.