Dyfyniad APA

Guardado, J., Keifer, M., Wesseling, C., & Hoffman, J. (2006). Mortality among a Cohort of Banana Plantation Workers in Costa Rica.

Dyfyniad Arddull Chicago

Guardado, Jorge, Matthew Keifer, Catharina Wesseling, y Jonathan Hoffman. Mortality Among a Cohort of Banana Plantation Workers in Costa Rica. 2006.

Dyfyniad MLA

Guardado, Jorge, Matthew Keifer, Catharina Wesseling, y Jonathan Hoffman. Mortality Among a Cohort of Banana Plantation Workers in Costa Rica. 2006.

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