Nyeste Skilderie af Kjøbenhavn. Kjøbenhavn, 1804-30.
Nyland. Samlingar utgifna af Nyländska Afdelningen. Helsingfors, 1884-89. 4 Häfter.
Nyrop, Kristoffer. Kludetræet. En sammenlignende Undersøgelse. In Dania, I, 1-32. København, 1890.
—— Navnets Magt. En folkepsykologisk Studie. København, 1887.
—— See Dania.
Occleve, Thomas. De Regimine Principum. A poem written in the reign of Henry IV. Edited for the first time by Thomas Wright. London, 1860. (Roxburghe Club, 79.)
Ochoa, Eugenio de. Tesoro de los romanceros y cancioneros españoles, históricos, caballerescos, moriscos y otros, recogidos y ordenados por ——. Paris, 1838. (Coleccion de los Mejores Autores Españoles, 16.)
Octavian. Kaiser Octavianus. In Karl Simrock, Die deutschen Volksbücher, II, 241-424. Frankfurt a. M., 1845.
—— The Romance of Octavian, Emperor of Rome, abridged from a manuscript in the Bodleian Library. [By John Josias Conybeare.] Oxford, 1809.
—— The Romance of Octavian, Emperor of Rome. Abridged from a Manuscript in the Bodleian Library (circa 1250). By the Rev. J. J. Conybeare. And Edited with Additional Notes by E. M. Goldsmid. Edinburgh, 1882. (Aungervyle Society, I, 8, 9.)