Residues in eels [letter from the Department of Agriculture and Fisheries for Scotland to directors of environmental health and public analysts.]
Great Britain.Department of Agriculture and Fisheries for Scotland.
Edinburgh : The Department,
1988.
With "Residues in fresh water eels" (3p), "Dieldrin residues in eels" (1p) and "Survey of freshwater eels" (12p) attached.
Eels.