000 00741cam a22002411 4500
001 gs 55000288
003 DLC
005 20260227111403.0
008 780821r1955uuuunmua 000 0 eng c
010 _ags 55000288
035 _a(OCoLC)4156871
040 _aU.S. Geol. Survey. Libr.
_cTxEU
_dOCoLC
_dDLC
042 _apremarc
050 0 0 _aTN24.N6
_bA235 no. 32
100 1 _aWeber, Robert Harrison,
_d1919-
245 1 0 _aProcessing perlite,
_bthe technologic problems.
260 _aSocorro,
_c1955.
300 _a3 p.
_billus.
_c28 cm.
410 1 0 _aNew Mexico.
_bBureau of Mines and Mineral Resources.
_tCircular
_v32
500 _aCover title.
500 _a"Reprinted from Mining engineering, February 1955."
650 0 _aPerlite.
999 _c28992
_d28992