1 2 "Caterpillar – About Cat". cat.com. Caterpillar Inc. 2010. Diarkibkan daripada asal pada March 11, 2010. Dicapai 2010-03-11. We deliver products, services and technologies in three principal lines of business: Machinery, Engines and Financial Products.
1 2 "2009 Form 10-K". United States Securities and Exchange Commission. February 19, 2010. Diarkibkan daripada asal pada March 24, 2010. Dicapai 2010-03-23. As of December 31, 2009, we employed 93,813 persons of whom 50,562 were located outside the United States.
↑ Haddock, Keith; Orlemann, Eric (2001-11-11). Paul Johnson, penyunting. Classic Caterpillar Crawlers. St. Paul, Minnesota, Amerika Syarikat: MBI Publishing Company. m/s. 37–38. ISBN978-0-7603-0917-9. Dicapai 2010-11-06.
↑ "Caterpillar Inc. 4Q 2010 Earnings Release" (PDF). caterpillar.com. Caterpillar Inc. January 27, 2011. m/s. 15, 36–37, 39. Diarkibkan daripada asal (PDF) pada February 3, 2011. Dicapai 2011-02-02. Total sales and revenues....42,588
↑ "Caterpillar Tractor Co. List of Deals". Lehman Brothers Collection. President and Fellows of Harvard College. 2010. Diarkibkan daripada asal pada June 29, 2010. Dicapai 2010-11-06. In 1925 Holt and C.W. Best's company merged to form the Caterpillar Tractor Company.
↑ "Caterpillar – Legal Notices". cat.com. Caterpillar Inc. 2010. Diarkibkan daripada asal pada March 11, 2010. Dicapai 2010-03-11. "Caterpillar Yellow,"...trade dress...are trademarks of Caterpillar...
