Dyfyniad APA

Royal Society of Chemistry (Great Britain), Hester, R. E., & Harrison, R. M. (2009). Air quality in urban environments. RSC Publishing.

Dyfyniad Arddull Chicago

Royal Society of Chemistry (Great Britain), R. E. Hester, and Roy M. Harrison. Air Quality in Urban Environments. Cambridge, UK: RSC Publishing, 2009.

Dyfyniad MLA

Royal Society of Chemistry (Great Britain), et al. Air Quality in Urban Environments. RSC Publishing, 2009.

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