Twenty years ago : song /

Chicago citation style
Willing, William. Twenty years ago : song /. c1856. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101761345. (Accessed December 19, 2018.)
APA citation style
Willing, William, (c1856) Twenty years ago : song /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101761345
MLA citation style
Willing, William. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/101761345>.
Note: These citations are programmatically generated and may be incomplete.