Philo of Alexandria (a.k.a. Philo Judaeus, ca. 15 BCE–50 CE) was a Hellenistic Jewish philosopher. His extensive corpus is an important source of early Jewish biblical interpretations. SBLHS §8.3.6 includes guidelines for citing the works of Philo. The link below updates those guidelines.
Go to https://sblhs2.com/2018/03/01/philo-of-alexandria/
Philonica et Neotestamentica 