Greenhalgh, C., Gregory, M., & Barrell, R. (2000). Labour Productivity and Product Quality: Their Growth and Inter-industry Transmission in the UK 1979-1990. Cambridge University Press.
Chicago-referens (17:e uppl.)Greenhalgh, C., M. Gregory, och R. Barrell. Labour Productivity and Product Quality: Their Growth and Inter-industry Transmission in the UK 1979-1990. Cambridge University Press, 2000.
MLA-referens (9:e uppl.)Greenhalgh, C., et al. Labour Productivity and Product Quality: Their Growth and Inter-industry Transmission in the UK 1979-1990. Cambridge University Press, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.