Eight hours a day /

Chicago citation style
Butterfield, James A., 1837-1891, composer. Eight hours a day /. 1866. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101800777. (Accessed December 10, 2018.)
APA citation style
Butterfield, James A., 1837-1891, composer, (1866) Eight hours a day /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101800777
MLA citation style
Butterfield, James A., 1837-1891, composer. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/101800777>.
Note: These citations are programmatically generated and may be incomplete.