TY  - BOOK
AU  - Silver W S Ed.
AU  -  Schroder E C Ed.
TI  - Practical application of azolla for rice production
U1  - J381 : 24p1,N82, M4 
PY  - 1984///
CY  - Dordrecht
PB  - Martinus Nijhoff Publishers     
ER  -