TY  - BOOK
AU  - Campbell,Russell N.
AU  - Lindfors,Judith W.
TI  - Insights into English structure: a programmed course 
SN  - 0134675711
PY  - 1969///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - English language
KW  - Grammar
KW  - 1950-
KW  - Programmed instruction
KW  - Pronunciation
ER  -