Ingstrup, O. (1977). Prison leave: Third conference of directors of prison administrations. Council of Europe.
Chicago-Zitierstil (17. Ausg.)Ingstrup, Ole. Prison Leave: Third Conference of Directors of Prison Administrations. Strasbourg: Council of Europe, 1977.
MLA-Zitierstil (8. Ausg.)Ingstrup, Ole. Prison Leave: Third Conference of Directors of Prison Administrations. Council of Europe, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.