TY  - BOOK
AU  - Pollock, J. Bruce.
TI  - Gravity flow water systems : reasons for failure; references [from the M.Sc. thesis of] J.B. Pollock
U1  - Pamphlet  Z 7935 .P655  1986  
CY  - [S.l. : s.n.], 1986.
KW  - Water-supply – Bibliography
KW  - Water-supply – Planning – Bibliography
KW  - Water conservation – Bibliography
ER  -