TY  - BOOK
TI  - Irrigation canal lining
SN  - 9251001650
AV  - TC930 K89 
PY  - 1977///.
CY  - Rome, New York
PB  - Food and Agriculture Organization of the United Nations, for sale by UNIPUB
KW  - Irrigation canals and flumes
KW  - Linings
N1  - Bibliography: p. 189-199.
ER  -