Citazione APA

Harper, J. R. (1915). A survey of opportunities for vocational education in and near Philadelphia. Public Education Association.

Stile di citazione Chicago

Harper, Jane Roberts. A Survey of Opportunities for Vocational Education in and Near Philadelphia. Philadelphia: Public Education Association, 1915.

Citazione MLA

Harper, Jane Roberts. A Survey of Opportunities for Vocational Education in and Near Philadelphia. Public Education Association, 1915.