TY  - BOOK
AU  - Mitchell,Robert Lyell
TI  - The spectrographic analysis of soils, plants and related materials
T2  - Technical communication - Commonwealth Bureau of Soils
U1  - 543.7 
PY  - 1948///
CY  - Farnham Royal, England
PB  - Commonwealth Agricultural bureaux
KW  - Sols
KW  - Soils
N1  - Autre tirage : 1956; Le tirage de 1956 mesure 26 cm
ER  -