TY  - BOOK
AU  - Blumenthal,Joseph C.
TI  - English 2600: a programed course in grammar and usage
SN  - 0155008625
PY  - 1981///
CY  - New York
PB  - Harcourt Brace
KW  - English language
KW  - Programmed instruction
N1  - includes index
ER  -