Dyfyniad APA

Cawley, J. D., & Semler, C. E. (1989). Silicon carbide 87. The American Ceramic Society.

Dyfyniad Arddull Chicago

Cawley, James D., and Charles E. Semler. Silicon Carbide 87. Ohio: The American Ceramic Society, 1989.

Dyfyniad MLA

Cawley, James D., and Charles E. Semler. Silicon Carbide 87. The American Ceramic Society, 1989.

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