Dyfyniad APA

McCormack, M. H. (2000). Never wrestle with a pig: And ninety other ideas to build your business and career. Penguin books.

Dyfyniad Arddull Chicago

McCormack, Mark H. Never Wrestle with a Pig: And Ninety Other Ideas to Build Your Business and Career. New York: Penguin books, 2000.

Dyfyniad MLA

McCormack, Mark H. Never Wrestle with a Pig: And Ninety Other Ideas to Build Your Business and Career. Penguin books, 2000.

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