Dyfyniad APA

Wallwork. (2013). English for Academic Research: Grammar Exercises (1.). Springer US.

Dyfyniad Arddull Chicago

Wallwork. English for Academic Research: Grammar Exercises. 1. Springer US, 2013.

Dyfyniad MLA

Wallwork. English for Academic Research: Grammar Exercises. 1. Springer US, 2013.

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