Dyfyniad APA

Biber, D., Conrad, S., & Leech, G. (2002). Longman student grammar of spoken and written english. Longman/Pearson.

Dyfyniad Arddull Chicago

Biber, Douglas, Susan Conrad, and Geoffrey Leech. Longman Student Grammar of Spoken and Written English. Harlow: Longman/Pearson, 2002.

Dyfyniad MLA

Biber, Douglas, et al. Longman Student Grammar of Spoken and Written English. Longman/Pearson, 2002.

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