[Dow Jones Averages – Dow Jones Industrial Average – Components], Dow Jones & Company. 2010. Arkivert fra originalen den 22. januar 2013. Sitat: «Ticker CAT – Company Name Caterpillar Incorporated»
cat.com
«Caterpillar – About Cat», Cat.com. Caterpillar Inc. 2010. Arkivert fra originalen den 11. mars 2010. Sitat: «We deliver products, services and technologies in three principal lines of business: Machinery, Engines and Financial Products.»
2009 «Form 10-K», United States Securities and Exchange Commission. 19. februar 2010. Arkivert fra originalen den 8. november 2011. Sitat: «As of December 31, 2009, we employed 93,813 persons of whom 50,562 were located outside the United States.»
web.archive.org
«Caterpillar – About Cat», Cat.com. Caterpillar Inc. 2010. Arkivert fra originalen den 11. mars 2010. Sitat: «We deliver products, services and technologies in three principal lines of business: Machinery, Engines and Financial Products.»
2009 «Form 10-K», United States Securities and Exchange Commission. 19. februar 2010. Arkivert fra originalen den 8. november 2011. Sitat: «As of December 31, 2009, we employed 93,813 persons of whom 50,562 were located outside the United States.»
