[Composite atlas of 42 maps, produced by the Homann Erben firm].
MLA
Homann Erben (Firm). [Composite atlas of 42 maps, produced by the Homann Erben firm].. 1710-1748]. https://collections.library.yale.edu/catalog/2065824.
APA, 6th edition
Homann Erben (Firm). (1710-1748])[[Composite atlas of 42 maps, produced by the Homann Erben firm].]. https://collections.library.yale.edu/catalog/2065824.