Dyfyniad APA

Michael & Ash , I. (1980). A formulatary of detergents and other cleaning agents. Chemical publishing company.

Dyfyniad Arddull Chicago

Michael and Irene Ash. A Formulatary of Detergents and Other Cleaning Agents. New York: Chemical publishing company, 1980.

Dyfyniad MLA

Michael and Irene Ash. A Formulatary of Detergents and Other Cleaning Agents. Chemical publishing company, 1980.

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