Dyfyniad APA

(1993). Scienceware: Tools for science from bel-art products. New Jersey: Bel-Art Products.

Dyfyniad Arddull Chicago

Scienceware: Tools for Science From Bel-art Products. New Jersey: Bel-Art Products, 1993.

Dyfyniad MLA

Scienceware: Tools for Science From Bel-art Products. New Jersey: Bel-Art Products, 1993.

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