Cita APA (7a ed.)

Mahler, A., Mahler, G., & Mitchell, D. (1971). Erinnerungen an Gustav Mahler. Buchclub.

Cita Chicago Style (17a ed.)

Mahler, Alma, Gustav Mahler, y Donald Mitchell. Erinnerungen an Gustav Mahler. Zürich: Buchclub, 1971.

Cita MLA (9a ed.)

Mahler, Alma, et al. Erinnerungen an Gustav Mahler. Buchclub, 1971.