TY  - BOOK
AU  - Wilson,Thomas D.
TI  - An introduction to chain indexing
T2  - Programmed texts in library and information science
SN  - 0208010696
AV  - Z695.9 .W755
PY  - 1971///]
CY  - [Hamden, Conn.]
PB  - Linnet Books
KW  - Chain indexing
KW  - Programmed instruction
N1  - Bibliography: p. 84
ER  -