APA-ийн эшлэл(7 дахь хэвлэлт)

GROVER DERRICK. (1989). PROTECTION OF COMPUTER SOFTWARE - ITS TECHNOLOGY AND APPLICATIONS. CAMBRIDGE UNIVERSITY PRESS.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

GROVER DERRICK. PROTECTION OF COMPUTER SOFTWARE - ITS TECHNOLOGY AND APPLICATIONS. NEW YORK: CAMBRIDGE UNIVERSITY PRESS, 1989.

MLA -ийн эшлэл (9 дэх хэвлэлт)

GROVER DERRICK. PROTECTION OF COMPUTER SOFTWARE - ITS TECHNOLOGY AND APPLICATIONS. CAMBRIDGE UNIVERSITY PRESS, 1989.