Cita APA (7a ed.)

Undset, S., Page, T., & Nunnally, T. (2001). The unknown Sigrid Undset: Jenny and other works. Steerforth Press.

Cita Chicago Style (17a ed.)

Undset, Sigrid, Tim Page, y Tiina Nunnally. The Unknown Sigrid Undset: Jenny and Other Works. South Royalton, Vt.: Steerforth Press, 2001.

Cita MLA (9a ed.)

Undset, Sigrid, et al. The Unknown Sigrid Undset: Jenny and Other Works. Steerforth Press, 2001.