| 一般注記 |
Title from cover "Abstract families of languages" received by the editors May 31, 1967 and, in revised form, April 19, 1968 "Independence of AFL operations" received by the editors April 14, 1968 and, in revised form, May 20, 1968 "Pre-AFL" received by the editors received by the editors September 18, 1967 and, in revised form, February 23, 1968 Bibliography: p. 31-32, p. 39-40, p. 50-51 |