Dyfyniad APA

Howper, C. A. (1992). Handbook of Plastics Elastomers, and Composition. McGraw-Hill.

Dyfyniad Arddull Chicago

Howper, Charles A. Handbook of Plastics Elastomers, and Composition. New York: McGraw-Hill, 1992.

Dyfyniad MLA

Howper, Charles A. Handbook of Plastics Elastomers, and Composition. McGraw-Hill, 1992.

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