purdy, d. (1988). social power and the labour market: A radical approach to labour economics. ,Macmillan education.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিpurdy, david. Social Power and the Labour Market: A Radical Approach to Labour Economics. London: ,Macmillan education, 1988.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিpurdy, david. Social Power and the Labour Market: A Radical Approach to Labour Economics. ,Macmillan education, 1988.