Dyfyniad APA

Riegel, E. R. (1974). Riegel,s handbook of industrial chemistry (7thed.). Van Nostrand.

Dyfyniad Arddull Chicago

Riegel, Emil Raymond. Riegel,s Handbook of Industrial Chemistry. 7thed. New York: Van Nostrand, 1974.

Dyfyniad MLA

Riegel, Emil Raymond. Riegel,s Handbook of Industrial Chemistry. 7thed. Van Nostrand, 1974.

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