| 000 | 00931cam a22002771a 4500 | ||
|---|---|---|---|
| 001 | e 20000544 | ||
| 003 | DLC | ||
| 005 | 20260227111211.0 | ||
| 008 | 890405s1920 dcuaf f000 0 eng | ||
| 010 | _ae 20000544 | ||
| 035 | _a(OCoLC)19497253 | ||
| 040 |
_aDLC _cWvU _dDLC |
||
| 042 | _apremarc | ||
| 050 | 0 | 0 |
_aLC1045 _b.A25 no. 41 |
| 100 | 1 |
_aVirgin, R. Z. _q(Robert Zerubabel) |
|
| 245 | 1 | 0 | _aCoal-mine ventilation. |
| 260 |
_aWashington, D.C. : _bFederal Board for Vocational Education : _bGovt. Print. Off., _c1920. |
||
| 300 |
_a63 p., [3] leaves of plates : _bill ; _c24 cm. |
||
| 490 | 0 |
_aBulletin / Federal Board for Vocational Education ; _vno. 41 |
|
| 490 | 0 |
_aTrade and industrial series ; _vno. 11 |
|
| 500 | _aCover title. | ||
| 500 | _a"Prepared by R.Z. Virgin"--P. 5. | ||
| 500 | _a"November, 1919." | ||
| 650 | 0 | _aMine ventilation. | |
| 710 | 1 |
_aUnited States. _bFederal Board for Vocational Education. |
|
| 999 |
_c20395 _d20395 |
||