Cite

Map of Italy and Switzerland [cartographic material] / by T. Ettling.

MLA

Ettling, Theodor, b. 1823. Map of Italy and Switzerland [cartographic material] / by T. Ettling.. BRBL_00201. 1860. https://collections.library.yale.edu/catalog/15489794.

APA, 6th edition

Ettling, Theodor, b. 1823. (["BRBL_00201"])(1860)[Map of Italy and Switzerland [cartographic material] / by T. Ettling.]. https://collections.library.yale.edu/catalog/15489794.