00860cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035001800092040005400110050002200164051001500186086001600201100004700217245006300264260004800327300004600375410005500421504003000476650002400506650002800530650001900558999001700577gs 61000194 DLC20260227111410.0740808s1960    dcuab    b   f000 0 eng c  ags 61000194   a(OCoLC)974379  aU.S. Geol. Survey. Libr.cOKentUdOCoLCdISSdDLC00aQE75b.P9 no. 373  aQE33b.R350 aI 19.16:3731 aRay, Richard G.q(Richard Godfrey),d1920-10aAerial photographs in geologic interpretation and mapping.  aWashington,bU.S. Govt. Print. Off.,c1960.  avi, 230 p.billus., maps, diagrs.c30 cm.20aGeological Survey (U.S.).tProfessional paperv373  aBibliography: p. 224-227. 0aAerial photography. 0aPhotographic surveying. 0aGeologyxMaps.  c29537d29537