Diophantus Arithmetica
As quoted by Thomas Little Heath, Diophantos of Alexandria: https://books.google.com/books?id=ABkPAAAAIAAJ A Study in the History of Greek Algebra (1885) <br class="br">Arithmetica (c. 250 AD)
Diophantos von Alexandria war ein antiker griechischer Mathematiker. Er gilt als der bedeutendste Algebraiker der Antike, er gilt sogar als einer der wesentlichen Begründer der Algebra und Zahlentheorie. Wie sein Namenszusatz andeutet lebte er in Alexandria.

Diophantus Arithmetica
As quoted by Thomas Little Heath, Diophantos of Alexandria: https://books.google.com/books?id=ABkPAAAAIAAJ A Study in the History of Greek Algebra (1885) <br class="br">Arithmetica (c. 250 AD)
Diophantus Arithmetica
As quoted by James Gow, A Short History of Greek Mathematics https://books.google.com/books?id=9d8DAAAAMAAJ (1884) <br class="br">Arithmetica (c. 250 AD)
Diophantus Arithmetica
Following the dedication to Dionysus as quoted by Paul Drijvers, Secondary Algebra Education (2011)
Arithmetica (c. 250 AD)