APA-ийн эшлэл(7 дахь хэвлэлт)

(1986). How to test software packages: A step-by-step guide to assuring they do what you want / William E. Perry.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

How to Test Software Packages: A Step-by-step Guide to Assuring They Do What You Want / William E. Perry. 1986.

MLA -ийн эшлэл (9 дэх хэвлэлт)

How to Test Software Packages: A Step-by-step Guide to Assuring They Do What You Want / William E. Perry. 1986.