TY  - BOOK
AU  - Gomez, A. 
TI  - Sampling problems for the chemical analysis of sludge, soils and plants
SN  - 1851660496
U1  - 628.2 22
PY  - 1986///
CY  - London
PB  - Elsevier
KW  -  Soils
KW  - Analysis
N1  - Includes bibliographical references
ER  -