I have been trying to find the following as I am very interested in reading Aristotle in the original Greek:
Aristotle. Aristotelis opera. Edited by Immanuel Bekker, Christian August Brandis, and Hermann Bonitz. 4 vols. Academia Regia Borussica [The Royal Prussian Academy]. Berlin: Georg Reimer, 1831.
Can it be found by any classical studies publisher?