Dyfyniad APA
Bengtsson, T., Campbell, C., & Lee, J. Z. (2009). Life under pressure: Mortality and living standards in Europe and Asia, 1700-1900. The MIT Press.
Dyfyniad Arddull Chicago
Bengtsson, Tommy, Cameron Campbell, and James Z. Lee. Life Under Pressure: Mortality and Living Standards in Europe and Asia, 1700-1900. Cambridge, Massachusetts: The MIT Press, 2009.
Dyfyniad MLA
Bengtsson, Tommy, et al. Life Under Pressure: Mortality and Living Standards in Europe and Asia, 1700-1900. The MIT Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.