(1989). IFLA General Conference, 1989. Division of Libraries Serving the General Public. Section on Children's Libraries; Section of School Libraries; Section of Libraries Serving Disadvantaged Persons. Booklet 30.
Citazione stile Chigago Style (17a edizione)IFLA General Conference, 1989. Division of Libraries Serving the General Public. Section on Children's Libraries; Section of School Libraries; Section of Libraries Serving Disadvantaged Persons. Booklet 30. 1989.
Citatione MLA (9a ed.)IFLA General Conference, 1989. Division of Libraries Serving the General Public. Section on Children's Libraries; Section of School Libraries; Section of Libraries Serving Disadvantaged Persons. Booklet 30. 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.