Dyfyniad APA

ROBERTS, W. H., & TURGEON, G. (1989). About language: A reader for writers.-- Ed.2. Houghton Mifflin.

Dyfyniad Arddull Chicago

ROBERTS, William H., and Gregoire TURGEON. About Language: A Reader for Writers.-- Ed.2. Boston: Houghton Mifflin, 1989.

Dyfyniad MLA

ROBERTS, William H., and Gregoire TURGEON. About Language: A Reader for Writers.-- Ed.2. Houghton Mifflin, 1989.

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