Dyfyniad APA

Crawley, S. W. (1984). Steel building (3rd Ed.). John Wiley.

Dyfyniad Arddull Chicago

Crawley, Stanley W. Steel Building. 3rd Ed. New York: John Wiley, 1984.

Dyfyniad MLA

Crawley, Stanley W. Steel Building. 3rd Ed. John Wiley, 1984.

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