MLA

No. 1 [Area around Marghera and Campalto, Present Day Mestre, near Venice, Italy] / Firmato Castelli Capitano Del Genio. I.R. Direzione Locale del Genio di Venezia, 1827. https://collections.library.yale.edu/catalog/15502182.

APA, 6th edition

No. 1 [area around Marghera and Campalto, present day Mestre, near Venice, Italy] / firmato Castelli Capitano del Genio. (1827). [Manuscript maps]. I.R. Direzione Locale del Genio di Venezia, https://collections.library.yale.edu/catalog/15502182.