TY  - RPRT
TI  - Learning about emergency vehicles.
AU  - P Finn
AU  - P Wolff
PY  - 1978
DO  - 10.1111/j.1746-1561.1978.tb04567.x
UR  - https://pubmed.ncbi.nlm.nih.gov/252585/
ID  - 252585
ER  -