Cita APA (7a ed.)

Göttner, R. (1973). Was ist - was soll Operationsforschung. Urania Verlag.

Cita Chicago Style (17a ed.)

Göttner, Reinhard. Was Ist - Was Soll Operationsforschung. Leipzig: Urania Verlag, 1973.

Cita MLA (8a ed.)

Göttner, Reinhard. Was Ist - Was Soll Operationsforschung. Urania Verlag, 1973.