Dyfyniad APA

Parkinson, C. N. 109 Ways of getting to the top. Vision Books.

Dyfyniad Arddull Chicago

Parkinson, C. Northcote. 109 Ways of Getting to the Top. Vision Books.

Dyfyniad MLA

Parkinson, C. Northcote. 109 Ways of Getting to the Top. Vision Books.

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