Sewell, B. (1963). Two friends: John Gray & André Raffalovich ; essays biographical & critical with three letters from Andre Raffalovich to J.-K. Huysmans / edited by Brocard Sewell (Limitierte Auflage.). Saint Albert's Press.

Sewell, Brocard. Two Friends: John Gray & André Raffalovich ; Essays Biographical & Critical with Three Letters from Andre Raffalovich to J.-K. Huysmans / Edited by Brocard Sewell. Limitierte Auflage. Aylesford: Saint Albert's Press, 1963.

Sewell, Brocard. Two Friends: John Gray & André Raffalovich ; Essays Biographical & Critical with Three Letters from Andre Raffalovich to J.-K. Huysmans / Edited by Brocard Sewell. Limitierte Auflage. Saint Albert's Press, 1963.