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Dyfyniad Arddull ChicagoKlein, Perry D., Pietro Boscolo, Lori C. Kirkpatrick, and Carmen Gelati. Writing as a Learning Activity. 1a. ed. Leiden: Brill, 2014.
Dyfyniad MLAKlein, Perry D., et al. Writing as a Learning Activity. 1a. ed. Brill, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.