Digital Commonwealth

MLA

Lincoln, Edwin Hale. Cypripedium arietinum. 22 May 1919. Web. 20 Feb 2019. <https://ark.digitalcommonwealth.org/ark:/50959/z890sb374>.

APA

Lincoln, E. (1919, May 22). Cypripedium arietinum [Photograph]. Retrieved from https://ark.digitalcommonwealth.org/ark:/50959/z890sb374

Chicago

Lincoln, Edwin Hale. "Cypripedium arietinum." Photograph. May 22, 1919. Digital Commonwealth, https://ark.digitalcommonwealth.org/ark:/50959/z890sb374 (accessed February 20, 2019).