Jacob, M. (1974). Dual theory. North-Holland Publishing Company.
Čikaški stil citiranjaJacob, M. Dual Theory. Amsterdam: North-Holland Publishing Company, 1974.
MLA način citiranjaJacob, M. Dual Theory. North-Holland Publishing Company, 1974.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.