TY  - GEN
AU  - Head, K. H
TI  - Soil technicians' handbook
SN  - 072731906X
U1  - 631.433 
PY  - 1989///
CY  - London
PB  - Pentech press
KW  - Agriculture and related technologies
KW  - Soil mechanics
KW  - Soil physics
KW  - Soil science
KW  - Specific techniques
ER  -