TY  - RPRT
TI  - Pig housing: recent trends and problems.
AU  - D W Sainsbury
PY  - 1969
DO  - 10.1016/s0007-1935(17)48908-1
UR  - https://pubmed.ncbi.nlm.nih.gov/5816704/
ID  - 5816704
ER  -