Valacich, J. S., George, J. F., & Hoffer, J. A. (2001). Essentials of systems analysis and design. Prentice Hall.
Chicago Style (17th ed.) CitationValacich, Joseph S., Joey F. George, and Jeffrey A. Hoffer. Essentials of Systems Analysis and Design. Upper Saddle River, New Jersey: Prentice Hall, 2001.
ציטוט MLAValacich, Joseph S., et al. Essentials of Systems Analysis and Design. Prentice Hall, 2001.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.