Boycott for democracy ... boycott grapes unless you see this label

Chicago citation style
United Farm Workers, Author. Boycott for democracy ... boycott grapes unless you see this label. 1975. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/hb8k4012mm. (Accessed October 20, 2018.)
APA citation style
United Farm Workers, Author, (1975) Boycott for democracy ... boycott grapes unless you see this label. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/hb8k4012mm
MLA citation style
United Farm Workers, Author. Retrieved from the Digital Public Library of America <http://ark.cdlib.org/ark:/13030/hb8k4012mm>.
Note: These citations are programmatically generated and may be incomplete.