Dyfyniad APA

Hartley, B., & Viney, P. Streamline english. departures: Workbook a units 1-40 (23a ed.).

Dyfyniad Arddull Chicago

Hartley, Bernard, and Peter Viney. Streamline English. Departures: Workbook a Units 1-40. 23a ed.

Dyfyniad MLA

Hartley, Bernard, and Peter Viney. Streamline English. Departures: Workbook a Units 1-40. 23a ed.

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