.245
a	Observations of the erupstions of July 22 and August 7, 1980, at Mount St.Helens, Washington.
h	Book
.100
a	HOBLITT, Richard P.
.005
a	20080129103230
.260
a	Dallas
b	U.S.Geological Survey
c	1985
.084
a	551.21 HOB
.300
a	44 hlm.: gamb., tab.
b	30 cm
c	44 hlm.: gamb., tab.; 30 cm
.490
a	Geological Survey Profesional Paper; 1335
.336
a	Book