.245
a	RIVER basin management
b	: proceedings of the conference held in Essen, 12-16 September 1977.
h	Book
.005
a	20100401111529
.260
a	Oxford
b	Pergamon Press
c	1977
.084
a	628. RIV
.300
a	iv, 345 hlm.: gam, tab
b	27 cm.
c	iv, 345 hlm.: gam, tab; 27 cm.
.336
a	Book