Dyfyniad APA
ebrary, Inc, Gallo, M. N., & Ferrari, M. H. (2009). River pollution research progress. Nova Science Publishers.
Dyfyniad Arddull Chicago
ebrary, Inc, Mattia N. Gallo, and Marco H. Ferrari. River Pollution Research Progress. New York: Nova Science Publishers, 2009.
Dyfyniad MLA
ebrary, Inc, et al. River Pollution Research Progress. Nova Science Publishers, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.