@misc{Mayer_Tobias_(1723–1762)_Helvetia_1751,
 author={Mayer, Tobias (1723–1762)},
 editor={Homannsche Erben},
 copyright={Public Domain},
 address={Norimbergae},
 howpublished={online},
 year={1751},
 publisher={Luci publicae tradita ab Homannianis Heredibvs},
 language={lat},
 language={fre},
 title={Helvetia Tredecim Statibus Liberis quos Cantones vocant composita Una cum foederatis & subiectis Provinciis},
 keywords={chorographic maps, political-administrative maps, Switzerland, 18th century},
}