Dyfyniad APA

ebrary, Inc, Steckel, R. H., & Floud, R. (1997). Health and welfare during industrialization. University of Chicago Press.

Dyfyniad Arddull Chicago

ebrary, Inc, Richard H. Steckel, and Roderick Floud. Health and Welfare During Industrialization. Chicago, Ill.: University of Chicago Press, 1997.

Dyfyniad MLA

ebrary, Inc, et al. Health and Welfare During Industrialization. University of Chicago Press, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.