Παραπομπή σε μορφή APA (7η εκδ.)
ebrary, Inc, & Gleason, S. E. (2006). The shadow workforce: Perspectives on contingent work in the United States, Japan, and Europe. W.E. Upjohn Institute for Employment Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)
ebrary, Inc, και Sandra E. Gleason. The Shadow Workforce: Perspectives on Contingent Work in the United States, Japan, and Europe. Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2006.
Παραπομπή σε μορφή MLA (9th εκδ.)
ebrary, Inc, και Sandra E. Gleason. The Shadow Workforce: Perspectives on Contingent Work in the United States, Japan, and Europe. W.E. Upjohn Institute for Employment Research, 2006.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.