Dyfyniad APA

Johnson, A., Moira, C. Y., MacLean, L., Atkins, E., Dybuncio, A., Cheng, F., & Enarson, D. (1985). Respiratory abnormalities among workers in an iron and steel foundry.

Dyfyniad Arddull Chicago

Johnson, A., C Y. Moira, L. MacLean, E. Atkins, A. Dybuncio, F. Cheng, and D. Enarson. Respiratory Abnormalities Among Workers in an Iron and Steel Foundry. 1985.

Dyfyniad MLA

Johnson, A., et al. Respiratory Abnormalities Among Workers in an Iron and Steel Foundry. 1985.

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