Comprehensive map of the traction system of St. Louis : practical for the use in passenger traffic.
MLA
Heubach, Emil. Comprehensive Map of the Traction System of St. Louis : Practical for the Use in Passenger Traffic. Emil Heubach?], 0AD. https://collections.library.yale.edu/catalog/15814663.
APA, 6th edition
Heubach, E. (0 C.E.). Comprehensive map of the traction system of St. Louis : practical for the use in passenger traffic. [Maps]. Emil Heubach?], https://collections.library.yale.edu/catalog/15814663.
