Fourteenth international congress on irrigation and drainage , Brazil vol-1-E

Publicat 1990

Sixteenth congress on irrigation and drainage Egypt vol-1-B

per ICID, .
Publicat 1996

Fourteenth international congres on irrigation and drainage, Brazil vol-1-A

per ICID, .
Publicat 1990

Fourteenth international congres on irrigation and drainage, Brazil vol-1-D

per ICID, .
Publicat 1990

Fifteenth congress on irrigation and drainage , Hague, Netherlands 1993 vol-1-B /

per ICID, .
Publicat 1993

Fifteenth congress on irrigation and drainage , Hague, Netherlands 1993 vol-1-E

per ICID, .
Publicat 1993

Fifteenth congress on irrigation and drainage , Hague, Netherlands 1993 vol-1-I

per ICID, .
Publicat 1993

Fifteenth congress on irrigation and drainage , Hague, Netherlands 1993 Transactions vol-1-F

Publicat 1993

Fifteenth congress on irrigation and drainage , Hague, Netherlands 1993 Transactions vol-1-D

Publicat 1993

Fourteenth international congress on irrigation and drainage , Brazil Vol.1B

Publicat 1990

Fourteenth international congress on irrigation and drainage, Brazil Vol.II

Publicat 1990

Fifteenth congress on irrigation and drainage,The Hague ,Netherlands vol-1-J

Publicat 1993

Fifteenth congress on irrigation and drainage,The Hague ,Netherlands vol-2

Publicat 1993

Fifteenth congress on irrigation and drainage,The Hague ,Netherlands vol-1-H

Publicat 1993

15th Congress on Irrigation and Drainage Netherlands, 1993, Transactions, vol 1C /

per , .
Publicat 1993

Sixteenth congress on irrigation and drainage, Egypt vol-1-A

per ICID, .
Publicat 1996

Sixteenth congress on irrigation and drainage Egypt vol-1-F

per ICID, .
Publicat 1996

Sixteenth congress on irrigation and drainage Egypt vol-2

per ICID, .
Publicat 1996

Sixteenth congress on irrigation and drainage,Egypt- 1996-Transactions vol-1-E

per ICID, .
Publicat 1996

Sixteenth congress on irrigation and drainage,Egypt- 1996-Transactions vol-1-C

per ICID, .
Publicat 1996