TY  - BOOK
AU  - Ryan, John., ed.
AU  - Matar, Abdallah
ED  - Regional Workshop on Soil Test Calibration in west Asia and Nrty Africa
TI  - Proceedings of the Regional Workshop on Soil Test Calibration in west Asia and Nrty Afric
T2  - ICARDA -167/En/700/Apr 1990
PY  - 1990///
CY  - Syria
PB  - International Center for Agricultural Research in the Dry Areas
ER  -