TY  - BOOK
AU  - D.J. Swaine
TI  - Trace-element content of soils
U1  - 631.41 
PY  - 1969///
CY  - Bureaux
PB  - Commonwealth Agricultural
N1  - D.J. Swaine: Trace-element content of soils.  Bureaux.  Commonwealth Agricultural, 1969.--(631.41SWA)
ER  -