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000239421 001__ 239421
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000239421 035__ $$a(OCoLC)ocm45009994
000239421 035__ $$a239421
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000239421 074__ $$a0624-H (MF)
000239421 0860_ $$aI 19.76:99-233
000239421 24500 $$aDistribution and abundance of submersed aquatic vegetation in the tidal Potomac River and upper Potomac Estuary, Maryland, Virginia, and the District of Columbia, 1993-1998$$h[microform] /$$cby Henry A. Ruhl ... [et al.].
000239421 260__ $$aReston, Va. :$$bDept. of the Interior, U.S. Geological Survey ;$$aDenver, Colo. :$$bBranch of Information Services [distributor],$$c1999.
000239421 300__ $$aiv, 39 p. :$$bmaps ;$$c28 cm.
000239421 440_0 $$aU.S. Geological Survey open-file report ;$$v99-233
000239421 500__ $$aCover title.
000239421 500__ $$aShipping list no.: 2000-0887-M.
000239421 504__ $$aIncludes bibliographical references (p. 4-5).
000239421 533__ $$aMicrofiche.$$b[Denver, CO :$$cU.S. Geological Survey,$$d1999]$$e1 microfiche : negative.
000239421 650_0 $$aAquatic plants$$zPotomac River.
000239421 650_0 $$aWater quality$$zPotomac River.
000239421 651_0 $$aPotomac River.
000239421 651_0 $$aPotomac River Estuary.
000239421 7001_ $$aRuhl, Henry A.
000239421 7102_ $$aGeological Survey (U.S.)
000239421 85230 $$bdfich$$hI 19.76:$$i99-233
000239421 909CO $$ooai:library.usi.edu:239421$$pGLOBAL_SET
000239421 980__ $$aBIB
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