TY - BOOK AU - Dickinson,Leslie TI - Self-instruction in language learning SN - 0521266009 AV - P53.65 .D5 1987 PY - 1987/// CY - Cambridge [Cambridgeshire], New York PB - Cambridge University Press KW - Language and languages KW - Programmed instruction N1 - Includes index; Bibliography: p. 190-195 ER -