Harper, J. R. (1915). A survey of opportunities for vocational education in and near Philadelphia. Public Education Association.
Chicago-Zitierstil (17. Ausg.)Harper, Jane Roberts. A Survey of Opportunities for Vocational Education in and Near Philadelphia. Philadelphia: Public Education Association, 1915.
MLA-Zitierstil (8. Ausg.)Harper, Jane Roberts. A Survey of Opportunities for Vocational Education in and Near Philadelphia. Public Education Association, 1915.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.