Dyfyniad APA

Clayton, G. D., Clayton, F. E., Allan, R. E., & Patty, F. A. (1991). Patty's industrial hygiene and toxicology (4th ed.). Wiley.

Dyfyniad Arddull Chicago

Clayton, George D., Florence E. Clayton, R. E. Allan, and F. A. Patty. Patty's Industrial Hygiene and Toxicology. 4th ed. New York: Wiley, 1991.

Dyfyniad MLA

Clayton, George D., et al. Patty's Industrial Hygiene and Toxicology. 4th ed. Wiley, 1991.

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