000			01362cam a22003131 4500
001			gs 56000111
003			DLC
005			20260227111404.0
008			780708s1955 dcuabd b f000 0 eng
010			_ags 56000111
035			_a(OCoLC)4032435
040			_aDLC _cOClU _dISS _dOCoLC _dDLC
043			_an-mx---
050	0	0	_aQE75 _b.P9 no. 273
051			_aQE203.C3 _bW47
082			_a553.43
086	0		_aI 19.16:273
100	1		_aWilson, Ivan F. _q(Ivan Franklin), _d1916-
245	0	0	_aGeology and mineral deposits of the Boles copper district, Baja California, Mexico, _cby Ivan F. Wilson in collaboratin with Victor S. Rocha.
260			_aWashington, _bU.S. Govt. Print. Off., _c1955.
300			_avi, 134 p. _billus., maps (part fold., col.) diagrs., tables. _c29 cm.
410	2	0	_aGeological Survey (U.S.). _tProfessional paper, _v273
500			_aPart of illustrative matter in pocket.
500			_aPrepared in cooperation with the Instituto Nacional para la Investigación de Recursos Minerales under the auspices of the Technical Cooperation Administration of the U. S. Dept. of State.
504			_a"References cited": p. 128-132.
650		0	_aGeology _zMexico _zBaja California (Peninsula)
650		0	_aCopper ores _zMexico _zBaja California (Peninsula)
650		0	_aMines and mineral resources _zMexico _zBaja California (Peninsula)
999			_c29040 _d29040