Harper, M. (1986). A workers' co-operative: Formation and management. International Labour Office.
Chicago-referens (17:e uppl.)Harper, Malcolm. A Workers' Co-operative: Formation and Management. Geneva: International Labour Office, 1986.
MLA-referens (9:e uppl.)Harper, Malcolm. A Workers' Co-operative: Formation and Management. International Labour Office, 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.