TY  - BOOK
AU  - Yonny,Robert J.V.
TI  - International training course in soil and plant analysis: report on studies undertaken during the six-month course in soil and plant analysis 
PY  - 1986///
CY  - Amsterdam, The Netherlands
PB  - Royal Tropical Institute
KW  - plants
KW  - Analysis
KW  - Soils
ER  -