Leisure education : towards the 21st century : proceedings of the internationalseminar of the World Leisure and Recreation (WLRA) Commission on Education, Jerusalem, 2-4 Aug., 1993 / edited by Hillel Ruskin, Atara Sivan. - Ruskin, Hillel, 1934-; Sivan, Atara, 1957- (Brigham Young University, 1995)