Dyfyniad APA

Henry Ledgard,John Tauer. (1987). Professional Software: Software Engineering Concepts (1.). Addison-Wesley Publishing.

Dyfyniad Arddull Chicago

Henry Ledgard,John Tauer. Professional Software: Software Engineering Concepts. 1. Addison-Wesley Publishing, 1987.

Dyfyniad MLA

Henry Ledgard,John Tauer. Professional Software: Software Engineering Concepts. 1. Addison-Wesley Publishing, 1987.

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