Umbria /
Dana Facaros & Michael Pauls.

APA Citation

Facaros, D., Pauls, M. (2009). Umbria. 4th ed., [1st . American ed.] Northampton, Mass.: Cadogan Guides.

MLA Citation

Facaros, Dana, and Michael Pauls. Umbria. 4th ed., [1st . American ed.] Northampton, Mass.: Cadogan Guides, 2009.

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