MLA

Homann, Johann Baptist, 1663-1724. Dominii Veneti cum vicinis Parmae, Mutinae, Mantuae, et Mirandolae statibus nova descriptio / edita a Ioh. Baptista Homanno, sacrae caes. majestatis geographo.. [1720?]. https://collections.library.yale.edu/catalog/16670950.

APA, 6th edition

Homann, Johann Baptist, 1663-1724. ([1720?])[Dominii Veneti cum vicinis Parmae, Mutinae, Mantuae, et Mirandolae statibus nova descriptio / edita a Ioh. Baptista Homanno, sacrae caes. majestatis geographo.]. https://collections.library.yale.edu/catalog/16670950.