What is man?
- 1st ed.
- New York : Hawthorn Books, c1961.
- 124 p. ; 21 cm.
- Twentieth century encyclopedia of Catholicism ; v. 31. Section 3: The nature of man. .
- Twentieth century encyclopedia of Catholicism ; v. 31. .
Translation of: Homme, qui suis-je? translated from the French by Eric Earnshaw Smith and Reginald F. Trevett.