Cita APA (7a ed.)

Doolittle, H., & Holmes Pearson, N. (1973). Trilogy. New Directions.

Cita Chicago Style (17a ed.)

Doolittle, Hilda, y Norman Holmes Pearson. Trilogy. New York: New Directions, 1973.

Cita MLA (9a ed.)

Doolittle, Hilda, y Norman Holmes Pearson. Trilogy. New Directions, 1973.