Gentle Michael. (2002). CRM Project Management Handbook: Building realistic expectations and managing risk. Kongan Page Ltd.
Chicago-čujuhus (17. p.)Gentle Michael. CRM Project Management Handbook: Building Realistic Expectations and Managing Risk. London: Kongan Page Ltd, 2002.
MLA-čujuhus (9. p.)Gentle Michael. CRM Project Management Handbook: Building Realistic Expectations and Managing Risk. Kongan Page Ltd, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.