APA (7th ed.) Citation

Teilhard de Chardin, P. (1968). Letters to two friends: 1926-1952.

Chicago Style (17th ed.) Citation

Teilhard de Chardin, Pierre. Letters to Two Friends: 1926-1952. New York, 1968.

MLA (9th ed.) Citation

Teilhard de Chardin, Pierre. Letters to Two Friends: 1926-1952. 1968.

Warning: These citations may not always be 100% accurate.