Dyfyniad APA

Nick Ham. (1999). Longman essential activator (Workbook). Essex, UK: Longman.

Dyfyniad Arddull Chicago

Nick Ham. Longman Essential Activator (Workbook). Essex, UK: Longman, 1999.

Dyfyniad MLA

Nick Ham. Longman Essential Activator (Workbook). Essex, UK: Longman, 1999.

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