Dyfyniad APA

Casey, P. (2014). The Greatest Company in the World? Portfolio.

Dyfyniad Arddull Chicago

Casey, Peter. The Greatest Company in the World? NEw Delhi: Portfolio, 2014.

Dyfyniad MLA

Casey, Peter. The Greatest Company in the World? Portfolio, 2014.

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