Book Reviews : David ZWEIG, Freeing China's Farmers: Rural Restructuring in the Reform Era. Armonk, NY and London: M.E. Sharpe 1997. Distributed by Eurospan, London. xvii + 365 pp. ISBN: 1-56324-837-9 (hc), 1-56324-838-7 (pbk). Price: US$62.95 (hc), US$24.95 (pbk)