Dyfyniad APA

(2002). Longman language activator: Helps you write and speak natural English. London: Longman.

Dyfyniad Arddull Chicago

Longman Language Activator: Helps You Write and Speak Natural English. London: Longman, 2002.

Dyfyniad MLA

Longman Language Activator: Helps You Write and Speak Natural English. London: Longman, 2002.

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