Ludendorff, M. (1954). The origin and nature of the soul. Hohe Warte.
Chicagoスタイル(17版)引用形式Ludendorff, Mathilde. The Origin and Nature of the Soul. Pähl: Hohe Warte, 1954.
MLA(9版)引用形式Ludendorff, Mathilde. The Origin and Nature of the Soul. Hohe Warte, 1954.
警告: この引用は必ずしも正確ではありません.