Dyfyniad APA

(2007). McGraw-Hill encyclopedia of science and technology. New York, NY: McGraw-Hill.

Dyfyniad Arddull Chicago

McGraw-Hill Encyclopedia of Science and Technology. New York, NY: McGraw-Hill, 2007.

Dyfyniad MLA

McGraw-Hill Encyclopedia of Science and Technology. New York, NY: McGraw-Hill, 2007.

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