Ortloff Ingeborg : Von der Grosse unserer Literatur : Reden und Aufsätze / herausgegeben von I. Siebert und I. Ortloff.
1971
1
Ortman Dennis C : The dual diagnosis recovery sourcebook : a physical, mental, and spiritual approach to addiction with an emotional disorder / Dennis C. Ortman.
Ortner Loelies : Deutsche Wortbildung : Typen und Tendenzen in der Gegenwartsprache : eine Bestandsaufnahme des Instituts dur Deutsche Sprache Forschungsstelle Innsbruck / Lorelies Ortner [et al.].
Ortolani Oddone : Per la storia della vita religiosa italiana nel cinquecento : Pietro Carnesecchi,con estratti dagli Atti del Processo del Santo Officio.
1963
1
Ortolani Riz 1931 : Il cuore altrove [videorecording] / written and directed by Pupi Avati.
2003
1
Ortoleva Peter J : Prediction of reservoir quality through chemical modeling / edited by Indu D. Meshri and Peter J. Ortoleva.
1990
1
Orton Andrew : Orchestral works [sound recording] : volume 2.
Orton Johnson Kate : Digital sociology : critical perspectives / edited by Kate Orton-Johnson, University of Edinburgh, UK, and Nick Prior, University of Edinburgh, UK.