Commentary on Virgil (fragment).
MLA
Servius, active 4th century. Commentary on Virgil (fragment).. approximately 950.. https://collections.library.yale.edu/catalog/10543839.
APA, 6th edition
Servius, active 4th century. (approximately 950.)[Commentary on Virgil (fragment).]. https://collections.library.yale.edu/catalog/10543839.