Zells, L. (1990). Managing software projects: Selecting and using PC-based project management systems. QED Information Sciences.
Chicago-Zitierstil (17. Ausg.)Zells, Lois. Managing Software Projects: Selecting and Using PC-based Project Management Systems. Wellesley, Mass: QED Information Sciences, 1990.
MLA-Zitierstil (9. Ausg.)Zells, Lois. Managing Software Projects: Selecting and Using PC-based Project Management Systems. QED Information Sciences, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.