Palaeontological map sheet no. 2

Chicago citation style
Johnston, Alexander Keith, 1804-1871. Palaeontological map sheet no. 2. 1856. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/15382. (Accessed December 16, 2019.)
APA citation style
Johnston, Alexander Keith, 1804-1871, (1856) Palaeontological map sheet no. 2. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/15382
MLA citation style
Johnston, Alexander Keith, 1804-1871. Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/15382>.
Note: These citations are programmatically generated and may be incomplete.