APA (7e ed.) Bronvermelding

Wallace, J., & Erickson, J. (1993). Hard drive: Bill Gates and the making of the Microsoft empire (First HarperBusiness edition.). HarperBusiness.

Chicago (17e ed.) Bronvermelding

Wallace, James, en Jim Erickson. Hard Drive: Bill Gates and the Making of the Microsoft Empire. First HarperBusiness edition. New York: HarperBusiness, 1993.

MLA (9e ed.) Bronvermelding

Wallace, James, en Jim Erickson. Hard Drive: Bill Gates and the Making of the Microsoft Empire. First HarperBusiness edition. HarperBusiness, 1993.