Darnell, H., Collins, R., & Howell, D. M. (1980). Total project management. Asset Management Group of the British Institute of Management.

Darnell, H., R. Collins, and D. M. Howell. Total Project Management. Corby,[Eng.]: Asset Management Group of the British Institute of Management, 1980.

Darnell, H., et al. Total Project Management. Asset Management Group of the British Institute of Management, 1980.