The Mersey Barrage : the proceedings of the Mersey Barrage Symposium on Saturday March 4th 1989-- at the Russell Allan Lecture Theatre Chester Zoo /
Mersey Barrage Symposium (1989 :Chester)
Jones, Beatrice.
Norgain, Brenda.
North of England Zoological Society.
Chester : North of England Zoological Society,
1989.
"Editors Beatrice Jones and Brenda Norgain".