Manual for aeroplane and ship surveys of waterfowl and seabirds /
Komdeur, J.
Bertelsen, J.
Cracknell, G.
International Waterfowl and Wetlands Research Bureau.
Joint Nature Conservation Committee (Great Britain)
Kal₀, Denmark : Ministry of the Environment, National Environmental Research Institute, Dept. of Wildlife Ecology,
1992.
"This manual is the result of a joint project including the National Environmental Research Institute, Denmark, The International Waterfowl and Wetlands Research Bureau, Slimbridge, UK, The Joint Nature Conservation Committee, Aberdeen, UK and Ornis Consult A/S, Copenhagen, Denmark."
Includes bibliographies.