00943cam a2200253   4500001001300000003000400013005001700017008004100034010001700075040004500092043002100137050002200158051002800180082002100208100005000229245011800279260002300397300003100420490005200451504002500503650005700528650006500585830003900650gs 68000270 DLC20260227111423.0690815s1968    dcua     b    000 0 eng c  ags 68000270   aU.S. Geological Survey LibrarycDLCdDLC  an-us-paan-us-de00aQE75b.C5 no. 554  aGB1225.P4bL46cCopy 2.00a551.4/83/09748131 aLeopold, Luna B.q(Luna Bergere),d1915-2006.10aHydrology for urban land planning;ba guidebook on the hydrologic effects of urban land use,cby Luna B. Leopold.  aWashington,c1968.  aiii, 18 p.billus.c26 cm.1 aUnited States. Geological Survey. Circularv554  aBibliography: p. 18. 0aHydrologyzBrandywine Creek Watershed (Pa. and Del.) 0aRegional planningzBrandywine Creek Watershed (Pa. and Del.) 0aGeological Survey circular ;v554.