Dyfyniad APA

LaDou, J. (1997). Occupational & environmental medicine (2nd ed.). Appleton & Lange.

Dyfyniad Arddull Chicago

LaDou, Joseph. Occupational & Environmental Medicine. 2nd ed. Stamford, Conn.: Appleton & Lange, 1997.

Dyfyniad MLA

LaDou, Joseph. Occupational & Environmental Medicine. 2nd ed. Appleton & Lange, 1997.

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