The flora of Northamptonshire and the Soke of Peterborough /
Gent, Gill.
Wilson, Robert J.(Robert John),1943-
Kettering and District Natural History Society.
Northamptonshire Flora Group.
Rothwell, Northants : Published for the Kettering and District Natural History Society and the Nothamptonshire Flora Group by Robert Wilson Designs,
c1995.
Botany
Botany