Dyfyniad APA

LaDou, J., & Harrison, R. (2021). Current occupational & environmental medicine (Sixth edition.). McGraw-Hill.

Dyfyniad Arddull Chicago

LaDou, Joseph, and Robert Harrison. Current Occupational & Environmental Medicine. Sixth edition. New York: McGraw-Hill, 2021.

Dyfyniad MLA

LaDou, Joseph, and Robert Harrison. Current Occupational & Environmental Medicine. Sixth edition. McGraw-Hill, 2021.

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