=LDR 22 4500 =001 5823 =082 04$a551.48 POT =100 1\$aPotter, H. R. =245 10$aThe use of historic records for the augmentation of hydrological data =260 \\$aWallingford, Oxon :$bInstitute of Hydrology,$c1978 =650 \0$aPamphlets =852 \\$bFreeman Library$h551.48 POT