Organ harmonies for the Gregorian psalm tones

Chicago citation style
Brown, Arthur Henry, b. 1830. Organ harmonies for the Gregorian psalm tones. [1871]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/008695628. (Accessed October 17, 2019.)
APA citation style
Brown, Arthur Henry, b. 1830, ([1871]) Organ harmonies for the Gregorian psalm tones. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/008695628
MLA citation style
Brown, Arthur Henry, b. 1830. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/008695628>.
Note: These citations are programmatically generated and may be incomplete.