APA

Teilhard De Chardin P., . (1962). Letters from a traveller: 1923 - 1955. New York: Fontana Books.

Chicago

Teilhard De Chardin Pierre, . 1962. Letters from a traveller: 1923 - 1955. New York: Fontana Books.

Harvard

Teilhard De Chardin P., . (1962). Letters from a traveller: 1923 - 1955. New York: Fontana Books.

MLA

Teilhard De Chardin Pierre, . Letters from a traveller: 1923 - 1955. New York: Fontana Books. 1962.