Cita APA (7th ed.)

O'Brien, J. (1953). Portrait of André Gide: A critical biography. Secker & Warburg.

Cita Chicago (17th ed.)

O'Brien, Justin. Portrait of André Gide: A Critical Biography. London: Secker & Warburg, 1953.

Cita MLA (8th ed.)

O'Brien, Justin. Portrait of André Gide: A Critical Biography. Secker & Warburg, 1953.