Ellsworth, R. E. (1970). The School library: Facilities for independent study in the secondary school. Educational Facilities Laboratories.
Chicago-Zitierstil (17. Ausg.)Ellsworth, Ralph E. The School Library: Facilities for Independent Study in the Secondary School. U.S.A: Educational Facilities Laboratories, 1970.
MLA-Zitierstil (9. Ausg.)Ellsworth, Ralph E. The School Library: Facilities for Independent Study in the Secondary School. Educational Facilities Laboratories, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.