Swiss Ferderal Railways Tourist map of Switzerland, 1910 / Kümmerly & Frey's Geographl. Establ. Berne.
MLA
Swiss Ferderal Railways Tourist Map of Switzerland, 1910 / Kümmerly & Frey's Geographl. Establ. Berne. Publicity Office of the Swiss Federal Railways, 1910. https://collections.library.yale.edu/catalog/15826883.
APA, 6th edition
Swiss Ferderal Railways Tourist map of Switzerland, 1910 / Kümmerly & Frey's Geographl. Establ. Berne. (1910). [Railroad maps]. Publicity Office of the Swiss Federal Railways, https://collections.library.yale.edu/catalog/15826883.