Perry,William E. (1985). Data processing budgets: How to develop and use budgets effectively (management perspective). Prentice Hall.
استشهاد بنمط شيكاغوPerry,William E. Data Processing Budgets: How to Develop and Use Budgets Effectively (management Perspective). New Jersey: Prentice Hall, 1985.
MLA استشهادPerry,William E. Data Processing Budgets: How to Develop and Use Budgets Effectively (management Perspective). Prentice Hall, 1985.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.