Gottner, H. R. (1968). On The Critical Path Method (C.P.M) and its Application in the G.D.R. The Institute of National Planning.
Chicago-referens (17:e uppl.)Gottner, Habil Reinhard. On The Critical Path Method (C.P.M) and Its Application in the G.D.R. Cairo: The Institute of National Planning, 1968.
MLA-referens (9:e uppl.)Gottner, Habil Reinhard. On The Critical Path Method (C.P.M) and Its Application in the G.D.R. The Institute of National Planning, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.