00597cam a22002051  4500001001300000003000400013005001700017008004100034010001700075035001800092040002000110043001200130050002200142100005000164245006300214260003500277300001000312410004400322650002500366gs 31000041 DLC20260227111335.0720328s1931    dcu          f000 0 eng    ags 31000041   a(OCoLC)271942  aDLCcODaWUdDLC  an-us-ca00aQE75b.B9 no. 8261 aWilmarth, M. Graceq(Mary Grace),d1866-1949.10aNames and definitions of the geologic units of California.  bU.S. Govt. Print. Off.,c1931.  a97 p.20aGeological Survey (U.S.)tBulletinv826 0aGeologyzCalifornia.