McCormack, M. H. (2000). Never wrestle with a pig: And ninety other ideas to build your business and career. Penguin books.
Chicago-Zitierstil (17. Ausg.)McCormack, Mark H. Never Wrestle with a Pig: And Ninety Other Ideas to Build Your Business and Career. New York: Penguin books, 2000.
MLA-Zitierstil (9. Ausg.)McCormack, Mark H. Never Wrestle with a Pig: And Ninety Other Ideas to Build Your Business and Career. Penguin books, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.