Cohen,Betsy. Childern's services partnerships for success. American library Association.
Cita Chicago (17th ed.)Cohen,Betsy. Childern's Services Partnerships for Success. Chicago: American library Association.
Cita MLA (9th ed.)Cohen,Betsy. Childern's Services Partnerships for Success. American library Association.
Atenció: Aquestes cites poden no estar 100% correctes.