Caterpillar Tractor Company. (1954). Men of timber. Caterpillar Tractor Co..
Cita Chicago Style (17a ed.)Caterpillar Tractor Company. Men of Timber. Peoria, Ill.: Caterpillar Tractor Co., 1954.
Cita MLA (8a ed.)Caterpillar Tractor Company. Men of Timber. Caterpillar Tractor Co., 1954.
Precaución: Estas citas no son 100% exactas.