Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Written in the 1960s for the sexual fiction market, this book features 'case studies of the swinging lifestyle' -- billed as 'raw, bold, intimate, and graphic sexual exposes!' -- though quite mild by modern standards.