Nickel, M. (1975). Steps to service: A handbook of procedures for the school library media center. American Library association.
Chicago-Zitierstil (17. Ausg.)Nickel, Mildred. Steps to Service: A Handbook of Procedures for the School Library Media Center. Chicago: American Library association, 1975.
MLA-Zitierstil (9. Ausg.)Nickel, Mildred. Steps to Service: A Handbook of Procedures for the School Library Media Center. American Library association, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.