Noble, D., & Rittel, H. W. J. (1988). Issue-based information systems and environmental planning information systems: A bibliography of material on IBIS and UMPLIS. IGP.
Chicago-Zitierstil (17. Ausg.)Noble, Douglas, und Horst W. J. Rittel. Issue-based Information Systems and Environmental Planning Information Systems: A Bibliography of Material on IBIS and UMPLIS. Stuttgart: IGP, 1988.
MLA-Zitierstil (9. Ausg.)Noble, Douglas, und Horst W. J. Rittel. Issue-based Information Systems and Environmental Planning Information Systems: A Bibliography of Material on IBIS and UMPLIS. IGP, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.