MLA

Virgil. Opera, Cum Servii, Donati, Christophori Landini, Domitii Calderini Commentariis. Anton Koberger, 1492. https://collections.library.yale.edu/catalog/15825686.

APA, 6th edition

V. (1492). Opera, cum Servii, Donati, Christophori Landini, Domitii Calderini commentariis [Incunabula, Pigskin bindings (Binding), Blind tooled bindings (Binding), Printed waste (Binding), Incunabula in Yale Library]. Anton Koberger. https://collections.library.yale.edu/catalog/15825686.