APA

Foucauld C. d., . (1938). Lettres á Henry de Castries. Paris: Grasset.

Chicago

Foucauld Charles de, . 1938. Lettres á Henry de Castries. Paris: Grasset.

Harvard

Foucauld C. d., . (1938). Lettres á Henry de Castries. Paris: Grasset.

MLA

Foucauld Charles de, . Lettres á Henry de Castries. Paris: Grasset. 1938.