GROVER DERRICK. (1989). PROTECTION OF COMPUTER SOFTWARE - ITS TECHNOLOGY AND APPLICATIONS. CAMBRIDGE UNIVERSITY PRESS.
Chicago-viite (17. p.)GROVER DERRICK. PROTECTION OF COMPUTER SOFTWARE - ITS TECHNOLOGY AND APPLICATIONS. NEW YORK: CAMBRIDGE UNIVERSITY PRESS, 1989.
MLA-viite (9. p.)GROVER DERRICK. PROTECTION OF COMPUTER SOFTWARE - ITS TECHNOLOGY AND APPLICATIONS. CAMBRIDGE UNIVERSITY PRESS, 1989.
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