Stanford University. Center for Information Processing. (1974). Ballots II system requirements: Automated circulation system study. The Center.
Cita Chicago (17th ed.)Stanford University. Center for Information Processing. Ballots II System Requirements: Automated Circulation System Study. Stanford: The Center, 1974.
Cita MLA (8th ed.)Stanford University. Center for Information Processing. Ballots II System Requirements: Automated Circulation System Study. The Center, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.