Maraton 16
Shepard, Martin
Maraton 16 16 horas de experiencias sensoriales. - 2a. ed. - Argentiana Granica Editor 1971, c1970. - 263 p. - Colección Libertad y cambio. .
"A human potential book." Translation of : Marathon 16
Group relations training
Maraton 16 16 horas de experiencias sensoriales. - 2a. ed. - Argentiana Granica Editor 1971, c1970. - 263 p. - Colección Libertad y cambio. .
"A human potential book." Translation of : Marathon 16
Group relations training