Orbellis, N. d. (1503). Summule philosophie rationalis seu logica secundum doctrinam Doctoris Subtitlis Scoti. [s.n.].
Chicago Style (17th ed.) CitationOrbellis, Nicolaus de. Summule Philosophie Rationalis Seu Logica Secundum Doctrinam Doctoris Subtitlis Scoti. [Basilee]: [s.n.], 1503.
MLA (9th ed.) CitationOrbellis, Nicolaus de. Summule Philosophie Rationalis Seu Logica Secundum Doctrinam Doctoris Subtitlis Scoti. [s.n.], 1503.
Warning: These citations may not always be 100% accurate.