David Dent

Soil As World Heritage

2013

Alex Webster and the Gods

2007

Knowledge of the land

2001

Hoddesdon's Past in Pictures

Hoddesdon's Past in Pictures

1998

Broxbourne and Wormley's Past

Broxbourne and Wormley's Past in Pictures

1995

150 years of the Hertford and Ware Railway

1993

Acid Sulfate Soils

1986

Soil survey and land evaluation

1981