Is it OK to kill lambs but not seals?

Chicago citation style
DeWolf, Rose. Is it OK to kill lambs but not seals?. 1979-03-21. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll7/id/955. (Accessed December 12, 2018.)
APA citation style
DeWolf, Rose, (1979-03-21) Is it OK to kill lambs but not seals?. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll7/id/955
MLA citation style
DeWolf, Rose. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll7/id/955>.
Note: These citations are programmatically generated and may be incomplete.