Dyfyniad APA
Parmley, R. O. (2002). Field engineer's manual (3rd ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Parmley, Robert O. Field Engineer's Manual. 3rd ed. New York: McGraw-Hill, 2002.
Dyfyniad MLA
Parmley, Robert O. Field Engineer's Manual. 3rd ed. McGraw-Hill, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.