Cita APA (7a ed.)

Ludendorff, M. S., & Grossinger, W. (1977). The origin and nature of the soul: 1, History of creation. Warte.

Cita Chicago Style (17a ed.)

Ludendorff, Mathilde Spiess, y Walter Grossinger. The Origin and Nature of the Soul: 1, History of Creation. Pahl: Warte, 1977.

Cita MLA (9a ed.)

Ludendorff, Mathilde Spiess, y Walter Grossinger. The Origin and Nature of the Soul: 1, History of Creation. Warte, 1977.