Dyfyniad APA
ebrary, Inc, & Volkerts, B. D. (2011). Yttrium: Compounds, production and applications. Nova Science Publishers.
Dyfyniad Arddull Chicago
ebrary, Inc, and Bradley D. Volkerts. Yttrium: Compounds, Production and Applications. Hauppauge, N.Y.: Nova Science Publishers, 2011.
Dyfyniad MLA
ebrary, Inc, and Bradley D. Volkerts. Yttrium: Compounds, Production and Applications. Nova Science Publishers, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.