Dyfyniad APA

Ellis, R. (1985). Understanding second language acquisition. Oxford University.

Dyfyniad Arddull Chicago

Ellis, Rod. Understanding Second Language Acquisition. Oxford: Oxford University, 1985.

Dyfyniad MLA

Ellis, Rod. Understanding Second Language Acquisition. Oxford University, 1985.

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