Lipshitz, S. (1972). Wastage among craft apprentice students: A pilot study of a group of boys on the first year of a craft level engineering course, comparing those who left during the year with those who stayed. Hutchinson Educational Ltd..
Παραπομπή σε μορφή Chicago (17η εκδ.)Lipshitz, Susan. Wastage Among Craft Apprentice Students: A Pilot Study of a Group of Boys on the First Year of a Craft Level Engineering Course, Comparing Those Who Left During the Year with Those Who Stayed. London: Hutchinson Educational Ltd., 1972.
Παραπομπή σε μορφή MLA (8th εκδ.)Lipshitz, Susan. Wastage Among Craft Apprentice Students: A Pilot Study of a Group of Boys on the First Year of a Craft Level Engineering Course, Comparing Those Who Left During the Year with Those Who Stayed. Hutchinson Educational Ltd., 1972.