W.Eichhorn, R. Henn, O.Opitz, & R.W. Shephard. (1974). Production theory: Proceedings of an International Seminar held at the University of Karlsruhe May-July 1973. Springer-Verlag.
Čikaški stil citiranja (17. izdanje)W.Eichhorn, R. Henn, O.Opitz, i R.W. Shephard. Production Theory: Proceedings of an International Seminar Held at the University of Karlsruhe May-July 1973. Berlin, Germany: Springer-Verlag, 1974.
MLA način citiranja (9. izdanje)W.Eichhorn, et al. Production Theory: Proceedings of an International Seminar Held at the University of Karlsruhe May-July 1973. Springer-Verlag, 1974.
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