APA (7th ed.) Citation

Douglas, W. O. (1966). Mr Lincoln y los negros. Plaza and Janes.

Chicago Style (17th ed.) Citation

Douglas, William O. Mr Lincoln Y Los Negros. Buenos Aires: Plaza and Janes, 1966.

MLA (9th ed.) Citation

Douglas, William O. Mr Lincoln Y Los Negros. Plaza and Janes, 1966.

Warning: These citations may not always be 100% accurate.