Thirty-one hours
Subtitle: the Grindstone experiment
By: a report by Theodore Olson and Gordon Christiansen.
Contributors: Christiansen, Gordon, joint author.; Canadian Friends Service Committee.
Publisher: Canadian Friends Service Committee
Published: 1966
Place of publication: Toronto
Language: eng
Number of pages: 107
Subjects: Nonviolence.; Social groups.
Other titles: Grindstone experiment.