APA (7e ed.) Bronvermelding

Gottner, H. R. (1968). On The Planning Method "PERT" and its Application in the GDR. The Institute of National Planning.

Chicago (17e ed.) Bronvermelding

Gottner, Habil Reinhard. On The Planning Method "PERT" and Its Application in the GDR. Cairo: The Institute of National Planning, 1968.

MLA (9e ed.) Bronvermelding

Gottner, Habil Reinhard. On The Planning Method "PERT" and Its Application in the GDR. The Institute of National Planning, 1968.

Let op: Deze citaties zijn niet altijd 100% accuraat.