Book Reviews : Procedural Justice: A Psychological Analysis. By JOHN THIBAUT and LAURENS WALKER. (Hillsdale, N.J.: Lawrence Erlbaum Associates, Publishers, 1975. Pp. 150. $9.95: $4.95.) Improving the Legal Process: Effects of Alternatives. By STUART S. NAGEL. (Lex ington, Mass.: Lexington Books, 1975. Pp. 363. $17.00.) · Study