John Frederick Peto's Sunday school class, with the teacher at the center

Chicago citation style
Brooks, T. John Frederick Peto's Sunday school class, with the teacher at the center. ca. 1864. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_6787&repo=DPLA. (Accessed December 19, 2018.)
APA citation style
Brooks, T, (ca. 1864) John Frederick Peto's Sunday school class, with the teacher at the center. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_6787&repo=DPLA
MLA citation style
Brooks, T. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_6787&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.