TY  - BOOK
AU  -  Bos,Marinus Gijsberthus
AU  -  Nugteren,J.
TI  -  On irrigation efficiencies / 
U1  -  AF 631.7 BOS 
PY  - 1974///
CY  -  Wageningen : 
PB  -  International Institute for Land Reclamation and Imp rovement, 
KW  -  Irrigation efficiency
ER  -