TY  - RPRT
TI  - 'Duck speech'.
AU  - N M Tierney
AU  - R Glew
PY  - 1992
DO  - 10.1111/j.1365-2044.1992.tb03291.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1416000/
ID  - 1416000
ER  -