http://www.amazon.com/An-Agency-Their-Own-Organizing/dp/1846942543

http://www.amazon.com/An-Agency-Their-Own-Organizing/dp/1846942543#reader_B008OH8VG6

An Agency of Their Own: Sex Worker Union Organizing   by Gregory Grall.

Sex Worker Union Organizador: Un Estudio Internacional de 2006, Palgrave, ISBN 1-4039-4925-5 , pp252

Gregor Grall, es profesor de relaciones laborales de la Universidad Hertfordshire.