Porphyry, approximately 234–approximately 305: Introductio in Tetrabiblum Ptolemaei [Greek]
- External links:
- Manuscripts:
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- MS. Arch. Selden. B. 8 — Composite manuscript
- MS. Rawl. G. 124 — 15th century
- MS. Savile 5 — 16th century
The above references reflect only the current coverage of the online catalogue and may not be comprehensive.