Crinoids (probably Promachocrinus kerguelensis) on rocky bottom

Chicago citation style
Propp, M. V. (Mikhail Vladimirovich). Crinoids (probably Promachocrinus kerguelensis) on rocky bottom. 1966 February. Retrieved from the Digital Public Library of America, https://library.ucsd.edu/dc/object/bb88065348. (Accessed December 10, 2018.)
APA citation style
Propp, M. V. (Mikhail Vladimirovich), (1966 February) Crinoids (probably Promachocrinus kerguelensis) on rocky bottom. Retrieved from the Digital Public Library of America, https://library.ucsd.edu/dc/object/bb88065348
MLA citation style
Propp, M. V. (Mikhail Vladimirovich). Retrieved from the Digital Public Library of America <https://library.ucsd.edu/dc/object/bb88065348>.
Note: These citations are programmatically generated and may be incomplete.