Dyfyniad APA

(2006). World pass (Advanced Workbook): Expanding English fluency. Boston, MA: Thomson ELT.

Dyfyniad Arddull Chicago

World Pass (Advanced Workbook): Expanding English Fluency. Boston, MA: Thomson ELT, 2006.

Dyfyniad MLA

World Pass (Advanced Workbook): Expanding English Fluency. Boston, MA: Thomson ELT, 2006.

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