Townsend, Wilfred Norman
An introduction to the scientific study of the soil W. N. Townsend - 5th ed - London Edward Arnold 1973 - vii, 209 p. ill. 23 cm
First-4th editions by N. M. Comber
Soil science
An introduction to the scientific study of the soil W. N. Townsend - 5th ed - London Edward Arnold 1973 - vii, 209 p. ill. 23 cm
First-4th editions by N. M. Comber
Soil science