00597nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001600102100002400118245005800142260004300200300001100243490002000254650003200274650005300306830002000359CHAP20220329140048.0971013s1945 us r 00010 eng d a46397 a47369 a51511 cCHAP04a550.16bT4600aThom, Emma Mertins.1 aBibliography of Notrh American geology, 1942 and 1943 aWashington :bGeological Survey,c1945 a460 p. aBulletinv; 94914aGeologíaxBibliografía.14aGeologíaxBibliografíaxAmérica del Norte.0 aBulletinv; 949