Bashe, Charles J.; Pugh, Emerson W.; Johnson, Lyle R.; Palmer, John H. (1986). IBM's Early Computers. MIT Press. pp. 8–34. ISBN0-262-02225-7.La referencia utiliza el parámetro obsoleto |coauthors= (ayuda)
Bashe, Charles J.; Johnson, Lyle R; Palmer, John H.; Pugh, Emerson W. (1986). IBM's Early Computers. MIT. p. 14. ISBN0-262-02225-7.La referencia utiliza el parámetro obsoleto |coauthors= (ayuda)
For example, the last page of The Inventory SimplifiedArchivado el 4 de octubre de 2013 en Wayback Machine., published in 1923, states by the "The Tabulating Machine Company - Division of - International Business Machines Corporation.
«IBM Archives: 1960s». IBM. Consultado el 12 de noviembre de 2010. «Rather than offer hardware, services and software exclusively in packages, marketers "unbundled" the components and offered them for sale individually. Unbundling gave birth to the multibillion-dollar software and services industries, of which IBM is today a world leader».
For example, the last page of The Inventory SimplifiedArchivado el 4 de octubre de 2013 en Wayback Machine., published in 1923, states by the "The Tabulating Machine Company - Division of - International Business Machines Corporation.
