Becque, A. J. (1977). LPR: An integrated program and data management system for engineering applications. s.n.
Chicago-referens (17:e uppl.)Becque, Antonio Jacobus. LPR: An Integrated Program and Data Management System for Engineering Applications. Amsterdam: s.n, 1977.
MLA-referens (9:e uppl.)Becque, Antonio Jacobus. LPR: An Integrated Program and Data Management System for Engineering Applications. s.n, 1977.
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