Cita APA (7th ed.)

Teilhard de Chardin, P. (1967). Letters from a traveller: 1923-1955 (1a. ed.). Collins.

Cita Chicago (17th ed.)

Teilhard de Chardin, Pierre. Letters from a Traveller: 1923-1955. 1a. ed. Londres: Collins, 1967.

Cita MLA (9th ed.)

Teilhard de Chardin, Pierre. Letters from a Traveller: 1923-1955. 1a. ed. Collins, 1967.