Dyfyniad APA

kelly, R. (1971). The use of English for Technical students. The English language book society.

Dyfyniad Arddull Chicago

kelly, R. The Use of English for Technical Students. NULL: The English language book society, 1971.

Dyfyniad MLA

kelly, R. The Use of English for Technical Students. The English language book society, 1971.

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