Donatus Ortigraphus, Ars grammatica /
edidit John Chittenden.

APA Citation

Donatus, A., Chittenden, J. (1982). Donatus Ortigraphus, Ars grammatica. Turnholti: Brepols.

MLA Citation

Donatus, Aelius, and John Chittenden. Donatus Ortigraphus, Ars Grammatica. Turnholti: Brepols, 1982.

Warning: These citations may not always be complete (especially for serials).