Cita APA (7a ed.)

Olson, C., & Maud, R. (2000). Selected Letters. University of California Press.

Cita Chicago Style (17a ed.)

Olson, Charles, y Ralph Maud. Selected Letters. Berkeley: University of California Press, 2000.

Cita MLA (8a ed.)

Olson, Charles, y Ralph Maud. Selected Letters. University of California Press, 2000.