Sidewall

Chicago citation style
Sidewall. ca. 1938. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Achndm_1999-37-4&repo=DPLA. (Accessed September 21, 2018.)
APA citation style
(ca. 1938) Sidewall. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Achndm_1999-37-4&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Achndm_1999-37-4&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.