TY  - RPRT
TI  - Conditional discrimination learning in the pigeon.
AU  - D G Born
AU  - M E Snow
AU  - E W Herbert
PY  - 1969
DO  - 10.1901/jeab.1969.12-119
UR  - https://pubmed.ncbi.nlm.nih.gov/16811332/
ID  - 16811332
ER  -