Geahča maid: The invisibles :
- The invisible glass /
- Les invisibles /
- The invisible orientation : an introduction to asexuality /
- An invisible spectator : a biography of Paul Bowles /
- "Los invisibles" : a history of male homosexuality in Spain, 1850-1939 /
- "Los invisibles" : una historia de la homosexualidad masculina en Espana, 1850-1939 /