TY  - RPRT
TI  - Second-order conditioning with food unconditioned stimulus.
AU  - P C Holland
AU  - R A Rescorla
PY  - 1975
DO  - 10.1037/h0076219
UR  - https://pubmed.ncbi.nlm.nih.gov/1120816/
ID  - 1120816
ER  -