Cita APA (7a ed.)

Heffernan, V., & Frederick, S. (2018). Robert Walser: A Companion. Northwestern University Press.

Cita Chicago Style (17a ed.)

Heffernan, Valerie, y Samuel Frederick. Robert Walser: A Companion. Evanston, Illinois: Northwestern University Press, 2018.

Cita MLA (8a ed.)

Heffernan, Valerie, y Samuel Frederick. Robert Walser: A Companion. Northwestern University Press, 2018.