Map of Nebraska showing the Union Pacific Railroad land grant

Chicago citation style
August Gast & Co. Map of Nebraska showing the Union Pacific Railroad land grant. Retrieved from the Digital Public Library of America, http://digital.libraries.psu.edu/cdm/ref/collection/maps1/id/30205. (Accessed December 19, 2018.)
APA citation style
August Gast & Co, Map of Nebraska showing the Union Pacific Railroad land grant. Retrieved from the Digital Public Library of America, http://digital.libraries.psu.edu/cdm/ref/collection/maps1/id/30205
MLA citation style
August Gast & Co. Retrieved from the Digital Public Library of America <http://digital.libraries.psu.edu/cdm/ref/collection/maps1/id/30205>.
Note: These citations are programmatically generated and may be incomplete.