Dyfyniad APA

Clack, G. (2005). Chân dung nước Mỹ (Portrait of the USA). NXB Thanh niên.

Dyfyniad Arddull Chicago

Clack, George. Chân Dung Nước Mỹ (Portrait of the USA). NXB Thanh niên, 2005.

Dyfyniad MLA

Clack, George. Chân Dung Nước Mỹ (Portrait of the USA). NXB Thanh niên, 2005.

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