| 000 | 01189cam a22002891i 4500 | ||
|---|---|---|---|
| 001 | gs 39000291 | ||
| 003 | DLC | ||
| 005 | 20260227111345.0 | ||
| 008 | 830301s1939 paua b s000 0 eng c | ||
| 010 | _ags 39000291 | ||
| 035 | _a(OCoLC)9267463 | ||
| 040 |
_aU.S. Geol. Survey. Libr _cOAU _dOCoLC _dDLC |
||
| 050 | 0 | 0 |
_aQE665 _b.P42 1939 |
| 110 | 1 |
_aPennsylvania. _bBureau of Topographic and Geologic Survey. |
|
| 245 | 1 | 4 |
_aThe Devonian of Pennsylvania : _bMiddle and upper Devonian / _cby Bradford Willard; Keyser limestone and Helderberg group, by Frank M. Swartz; Oriskany group, by Arthur B. Cleaves. |
| 260 |
_aHarrisburg, Pa. : _bDept. of internatl affairs, Topographic and geologic survey, _c1939. |
||
| 300 |
_axii, 481 p. : _bill. ; _c24 cm. |
||
| 440 | 0 |
_aBulletin G ; _v19 |
|
| 500 | _aAt head of title: Pennsylvania Geological Survey, Fourth series. | ||
| 504 | _aBibliography: p. 434-445. | ||
| 650 | 0 |
_aGeology, Stratigraphic _yDevonian. |
|
| 650 | 0 |
_aGeology _zPennsylvania. |
|
| 650 | 0 |
_aPaleontology _yDevonian. |
|
| 700 | 1 |
_aWillard, Bradford, _d1894- |
|
| 700 | 1 |
_aSwartz, Frank M. _q(Frank McKim), _d1899- |
|
| 700 | 1 |
_aCleaves, Arthur B. _q(Arthur Bailey), _d1905- |
|
| 999 |
_c27585 _d27585 |
||