APA
O'Neill E., La Follette F., Middleton G., O'Neill C. & Rouben Mamoulian Collection (Library of Congress). (1956). Long day's journey into night. New Haven: Yale University Press.
Chicago
O'Neill Eugene, La Follette Fola, Middleton George, O'Neill Carlotta and Rouben Mamoulian Collection (Library of Congress). 1956. Long day's journey into night. New Haven: Yale University Press.
Harvard
O'Neill E., La Follette F., Middleton G., O'Neill C. and Rouben Mamoulian Collection (Library of Congress). (1956). Long day's journey into night. New Haven: Yale University Press.
MLA
O'Neill Eugene, La Follette Fola, Middleton George, O'Neill Carlotta and Rouben Mamoulian Collection (Library of Congress). Long day's journey into night. New Haven: Yale University Press. 1956.