00829cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040004100112042001200153050002000165110002900185245021500214260002300429300002500452440003900477500001700516650002000533650001700553999001700570gs 49000232 DLC20260227111355.0850718s1949    dcua         f000 0 eng c  ags 49000232   a(OCoLC)12279857  aU. S. Geol. Survey. Libr.cTxHRdDLC  apremarc00aQE75b.C5 n. 572 aGeological Survey (U.S.)10aState coordinates and polyconic maps.bSome notes on the state plane-coordinate systems and their relation to polyconic quadrangle maps.cPrepared by Topographic Division, Research and Technical Control Branch.  aWashington,c1949.  a7 p.billus.c27 cm. 0aGeological Survey circularvno. 57  aCover title. 0aMap projection. 0aCartography.  c28398d28398