Graham, Bob. “Managing Unique Assignments”. International Journal of Project Management, vol. 20, no. 2, 2002, p. 180, https://doi.org/10.1016/s0263-7863(01)00026-6.
Graham, B. (2002). Managing Unique Assignments. International Journal of Project Management, 20(2), 180. https://doi.org/10.1016/s0263-7863(01)00026-6
Graham, Bob. “Managing Unique Assignments”. International Journal of Project Management 20, no. 2 (2002): 180. https://doi.org/10.1016/s0263-7863(01)00026-6.
Graham B. Managing Unique Assignments. International Journal of Project Management. 2002;20(2):180.