Dyfyniad APA
Royal Society of Chemistry (Great Britain), ebrary, Inc, & Harrison, R. M. (1999). Understanding our environment: An introduction to environmental chemistry and pollution (3rd ed.). Royal Society of Chemistry.
Dyfyniad Arddull Chicago
Royal Society of Chemistry (Great Britain), Inc ebrary, and Roy M. Harrison. Understanding Our Environment: An Introduction to Environmental Chemistry and Pollution. 3rd ed. Cambridge, U.K.: Royal Society of Chemistry, 1999.
Dyfyniad MLA
Royal Society of Chemistry (Great Britain), et al. Understanding Our Environment: An Introduction to Environmental Chemistry and Pollution. 3rd ed. Royal Society of Chemistry, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.