APA-referens (7:e uppl.)
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.
Chicago-referens (17:e uppl.)
ebrary, Inc, och 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.
MLA-referens (9:e uppl.)
ebrary, Inc, och 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.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.