| აღწერილობა |
computer disk ; 3 1/2 in. |
| შენიშვნა |
System requirements: IBM PC. |
| ანოტაცია |
This CD contains files that provide a digital version of USGS map 1-1853-A, precambrian basement map of the northen midcontinent, USA compiled by P.K. Sims and published in 1990. |
| ISBN: |
0607966440 |
|