Dyfyniad APA

SoRelle, R. P. (1927). Teacher's manual: Rational typewriting projects. Gregg Publishing Co..

Dyfyniad Arddull Chicago

SoRelle, Rupert Pitt. Teacher's Manual: Rational Typewriting Projects. New York : Chicago [etc.]: Gregg Publishing Co., 1927.

Dyfyniad MLA

SoRelle, Rupert Pitt. Teacher's Manual: Rational Typewriting Projects. Gregg Publishing Co., 1927.

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