Wildfowl and wader counts, 1990-91 : the reults of the National Waterfowl Counts and the Birds od Estuaries Enquiry in the United Kingdom /
Kirby, Jeff.,author.
Ferns J. R.,author.
Waters, R. J.,author.
Prys-Jones, R. P.,author.
Hulme, Mark,artist.
Scottish Natural Heritage (Agency),former owner.StEdNL
Wildfowl & Wetlands Trust,publisher.
British Trust for Ornithology.
"December 1991."
Front pastedown endpaper. Information & library services, Scottish Natural Heritage.