Humphreys, P., & Hawgood, J. (1987). Effective decision support systems. Technical Press in association with Unicom Seminars ; Gower Pub. Co..
Chicago-referens (17:e uppl.)Humphreys, Patrick, och J. Hawgood. Effective Decision Support Systems. Aldershot, Hants, England : Brookfield, Vt., USA: Technical Press in association with Unicom Seminars ; Gower Pub. Co., 1987.
MLA-referens (8:e uppl.)Humphreys, Patrick, och J. Hawgood. Effective Decision Support Systems. Technical Press in association with Unicom Seminars ; Gower Pub. Co., 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.