APA (7th ed.) Citation

Proclus Diadochus 412-485. (1557). De Sphaera liber.

Chicago Style (17th ed.) Citation

Proclus Diadochus 412-485. De Sphaera Liber. Paris, 1557.

MLA (9th ed.) Citation

Proclus Diadochus 412-485. De Sphaera Liber. 1557.

Warning: These citations may not always be 100% accurate.