TY  - BOOK
AU  - Douglas, W. W.
AU  - Lavin, A. L.
TI  - Responding: basic sequence
SN  - 0663234034
AV  - DUCE PN59.D8 
PY  - 1973///
CY  - Lexington
PB  - Gin and Compan
KW  - Responding
N1  - Includes index
ER  -