Of all filter kings tested: Carlton is lowest

Chicago citation style
American Tobacco Co. Of all filter kings tested: Carlton is lowest. 1974. Retrieved from the Digital Public Library of America, https://industrydocuments.library.ucsf.edu/tobacco/docs/#id=lypc0050. (Accessed December 17, 2018.)
APA citation style
American Tobacco Co, (1974) Of all filter kings tested: Carlton is lowest. Retrieved from the Digital Public Library of America, https://industrydocuments.library.ucsf.edu/tobacco/docs/#id=lypc0050
MLA citation style
American Tobacco Co. Retrieved from the Digital Public Library of America <https://industrydocuments.library.ucsf.edu/tobacco/docs/#id=lypc0050>.
Note: These citations are programmatically generated and may be incomplete.