Ancient Greek text
Ἰωάννου Ἀλεξανδρέως τοῦ Φιλοπόνου περὶ τῆς τοῦ ἀστρολάβου χρήσεως καὶ …
De usu astrolabii eiusque constructione
Joannes Philoponus Phil., De usu astrolabii eiusque constructione. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
Texts from The Greek Library and the Perseus Digital Library, under CC BY-SA 4.0 and CC BY 4.0. Divided into reading sections by Interlinea.