APA-ийн эшлэл(7 дахь хэвлэлт)

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.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Greenhalgh, C., M. Gregory, ба R. Barrell. Labour Productivity and Product Quality: Their Growth and Inter-industry Transmission in the UK 1979-1990. Cambridge University Press, 2000.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Greenhalgh, C., et al. Labour Productivity and Product Quality: Their Growth and Inter-industry Transmission in the UK 1979-1990. Cambridge University Press, 2000.