Tatian, approximately 120-173. Oratio ad Graecos : Gegen falsche Götter und falsche Bildung : Tatian, Rede an die Griechen / eingeleitet, übersetzt und mit interpretierenden Essays versehen von Peter Gemeinhardt, Marie-Luise Lakmann, Heinz-Günther Nesselrath, Ferdinand R. Prostmeier, Adolf Martin Ritter, Holger Strutwolf und Andrei Timotin ; herausgegeben von Heinz-Günther Nesselrath
Oratorians. / http://id.loc.gov/authorities/names/n84022031 : Borromini and the Roman oratory : style and society / Joseph Connors
1980
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Oratorians -- Rome. / http://id.loc.gov/authorities/names/n84022031 http://id.loc.gov/authorities/names/n79039816 : Borromini and the Roman oratory : style and society / Joseph Connors
Oratorio dei Filippini : Borromini and the Roman oratory : style and society / Joseph Connors
1980
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Oratorio dei Filippini (Rome, Italy) / http://id.loc.gov/authorities/names/n80078758 : Borromini and the Roman oratory : style and society / Joseph Connors
Oratorios -- Scores. : Belshazzar's feast : for mixed choir, baritone solo and orchestra / William Walton ; text arranged from biblical sources by Osbert Sitwell
Oratorios -- Vocal scores with piano. : Messiah : a sacred oratorio for soprano, alto, tenor & bass soli, SATB & orchestra / [G.F. Handel] ; words selected from Holy Scripture by Charles Jennens ; edited by Watkins Shaw
Orators -- France. : The principal speeches of the statesmen and orators of the French revolution, 1789-1795 / ed. with introductions, notes and indices by H. Morse Stephens
Orators -- Rome -- Correspondence. : M. Cornelii Frontonis epistulae : schedis tam ed. quam ined. Edmundi Hauleri usus iterum editum / Marcus Cornelius Fronto ; [edited by] Michael P.J. van den Hout