APA (7th ed.) Citation

Lumet, S., O'Neill, E., Hepburn, K., Robards, J., & Richardson, R. W. (2004). Long Day's Journey into Night.

Chicago Style (17th ed.) Citation

Lumet, Sidney, Eugene O'Neill, Katharine Hepburn, Jason Robards, and Richard W. Richardson. Long Day's Journey into Night. 2004.

MLA (9th ed.) Citation

Lumet, Sidney, et al. Long Day's Journey into Night. 2004.