(2002). Rules of thumb: A guides for writers.
Dyfyniad Arddull ChicagoRules of Thumb: A Guides for Writers. 2002.
Dyfyniad MLARules of Thumb: A Guides for Writers. 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
(2002). Rules of thumb: A guides for writers.
Dyfyniad Arddull ChicagoRules of Thumb: A Guides for Writers. 2002.
Dyfyniad MLARules of Thumb: A Guides for Writers. 2002.