Cita APA (7a ed.)

London, J., Salling, A., & Hvid, E. (1967). The Call of the wild. Grafisk Forlag.

Cita Chicago Style (17a ed.)

London, Jack, Aage Salling, y Erik Hvid. The Call of the Wild. Copenhague: Grafisk Forlag, 1967.

Cita MLA (9a ed.)

London, Jack, et al. The Call of the Wild. Grafisk Forlag, 1967.