000160409 000__ 01437cam\a2200349\a\4500 000160409 001__ 160409 000160409 005__ 20210513053259.0 000160409 008__ 940907s1994\\\\dcua\\\\\b\\\f000\0\eng\\ 000160409 010__ $$a 94036782 000160409 035__ $$a(OCoLC)ocm31167073 000160409 035__ $$a160409 000160409 040__ $$aDLC$$beng$$cDLC$$dGPO$$dAGL$$dOCL$$dOCLCQ$$dBTCTA$$dOCLCO 000160409 043__ $$an------ 000160409 049__ $$aISEA 000160409 05000 $$aQE75$$b.B9 no.2114 000160409 074__ $$a0620 000160409 08200 $$a526.3/6$$220 000160409 0860_ $$aI 19.3:2114 000160409 1001_ $$aCastle, Robert O. 000160409 24513 $$aAn empirical assessment of refraction error in leveling as a function of survey order and environment :$$ban analysis of the results of three North Anerican field experiments designed to measure the systematic component of the atmospheric refraction error in leveling /$$cby Robert O. Castle, Robert K. Mark, and Roger H. Shaw. 000160409 260__ $$aWashington :$$bU.S. G.P.O. ;$$aDenver, CO :$$bFor sale by U.S. Geological Survey, Map Distribution,$$c1994. 000160409 300__ $$av, 50 p. :$$bill. ;$$c28 cm. 000160409 4901_ $$aU.S. Geological Survey bulletin ;$$v2114 000160409 500__ $$aShipping list no.: 94-0403-P. 000160409 504__ $$aIncludes bibliographical references (p. 49-50). 000160409 650_0 $$aLeveling$$zNorth America. 000160409 650_0 $$aSurveying$$zNorth America. 000160409 650_0 $$aRefraction. 000160409 650_0 $$aSoil surveys$$zNorth America$$xGeophysical methods. 000160409 7001_ $$aMark, Robert K. 000160409 7001_ $$aShaw, Roger H. 000160409 830_0 $$aU.S. Geological Survey bulletin ;$$v2114. 000160409 85200 $$bgen$$hQE75$$i.B9$$ino.2114 000160409 909CO $$ooai:library.usi.edu:160409$$pGLOBAL_SET 000160409 980__ $$aBIB 000160409 980__ $$aBOOK