Vortex

Chicago citation style
Vortex. 1978. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mufs006-b002-f27-i007. (Accessed December 12, 2018.)
APA citation style
(1978) Vortex. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mufs006-b002-f27-i007
MLA citation style
Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mufs006-b002-f27-i007>.
Note: These citations are programmatically generated and may be incomplete.