TY  - BOOK
AU  - Corrigan,Philip Richard D.
TI  - An introduction to Sears List of subject headings
SN  - 085157002X
PY  - 1967///
CY  - London
PB  - C. Bingley
KW  - Sears, Minnie Earl, 1873
KW  - Subject headings
KW  - Programmed instruction
ER  -