APA (7th ed.) Citation

Johannes de Sacrobosco. (1515). Textus sphaerae.

Chicago Style (17th ed.) Citation

Johannes de Sacrobosco. Textus Sphaerae. [Paris], 1515.

MLA (9th ed.) Citation

Johannes de Sacrobosco. Textus Sphaerae. 1515.

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