Dyfyniad APA
Hill, M. K. (2004). Understanding environmental pollution: A primer (2nd ed.). Cambridge.
Dyfyniad Arddull Chicago
Hill, Marquita K. Understanding Environmental Pollution: A Primer. 2nd ed. Cambridge, UK ; New York: Cambridge, 2004.
Dyfyniad MLA
Hill, Marquita K. Understanding Environmental Pollution: A Primer. 2nd ed. Cambridge, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.