Dyfyniad APA

Alfaro, M. d. R., & Rodríguez, J. J. (1994). Air pollution in offices, hospitals and restaurants in Costa Rica.

Dyfyniad Arddull Chicago

Alfaro, María del Rosario, y José J. Rodríguez. Air Pollution in Offices, Hospitals and Restaurants in Costa Rica. 1994.

Dyfyniad MLA

Alfaro, María del Rosario, y José J. Rodríguez. Air Pollution in Offices, Hospitals and Restaurants in Costa Rica. 1994.

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