Dyfyniad APA

Wallwork, A. (2011). English for writing research papers. London: Springer.

Dyfyniad Arddull Chicago

Wallwork, Adrian. English for Writing Research Papers. London: Springer, 2011.

Dyfyniad MLA

Wallwork, Adrian. English for Writing Research Papers. London: Springer, 2011.

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