TY  - RPRT
TI  - Crop lithiasis in a budgerigar.
AU  - R Batwell
PY  - 1978
DO  - 10.1111/j.1751-0813.1978.tb05581.x
UR  - https://pubmed.ncbi.nlm.nih.gov/743061/
ID  - 743061
ER  -