Twenty-one poems by Katharine Tynan:

Chicago citation style
Tynan, Katharine, 1861-1931. Twenty-one poems by Katharine Tynan:. 1907. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001023911. (Accessed December 10, 2018.)
APA citation style
Tynan, Katharine, 1861-1931, (1907) Twenty-one poems by Katharine Tynan:. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001023911
MLA citation style
Tynan, Katharine, 1861-1931. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001023911>.
Note: These citations are programmatically generated and may be incomplete.