U.S. China Policy and the Problem of Taiwan. By William M. Bueler.[Boulder, Colorado: Colorado Associated University Press, 1971 . 140 pp. $5.95.]Taiwan and American Policy: The Dilemma in U.S.-China Relations. By Cohen Jerome Alan, Friedman Edward, Harold C. Hinton and Allen S. Whiting.[New York: Praeger, 1971. 187 pp. $7.50.]Peace with China? U.S. Decisions for Asia. Edited by Earl C. Ravenal.[New York: Liveright, 1971. 248 pp. $2.95 paperback.]