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01562aam a22003977a 4500 001 AF25951A65D311E6868A95C7DAD10320 003 SILO 005 20160819010408 008 981231s1997 dcu b f000 0 eng d 035 $a (OCoLC)40559991 040 $a GPO $c GPO $d DLC $d MvI $d SILO 074 $a 0830-H-14 (MF) 086 0 $a NAS 1.26:205139 100 10 $a Madau, Piero. 245 10 $a Cosmic metal production and the contribution of QSO absorption systems to the ionizing background $h [microform] / $c Piero Madau and J. Michael Shull. 260 $a [Washington, DC : $b National Aeronautics and Space Administration ; $c 1998] 300 $a 1 v. 490 1 $a [NASA contractor report] ; $v NASA-CR-203139 500 $a Shipping list no.: 98-1104-M. 533 $a Microfiche. $b [Washington, D.C. : $c National Aeronautics and Space Administration, $d 1998] $e 1 microfiche. 650 7 $a Radiation, Background $2 nasat 650 7 $a Intergalactic media. $2 nasat 650 7 $a Ionizing radiation $2 nasat 650 7 $a Supergiant stars $2 nasat 650 7 $a Star formation. $2 nasat 650 7 $a Starbursts $2 nasat 650 7 $a Ultraviolet radiation $2 nasat 650 7 $a Metals $2 nasat 650 7 $a Quasars $2 nasat 700 1 $a Shull, J. Michael. 710 1 $a United States. $b National Aeronautics and Space Administration 830 0 $a NASA contractor report $v NASA CR-203139. 941 $a 2 952 $l OVUX522 $d 20171223042502.0 952 $l USUX851 $d 20160819041305.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=AF25951A65D311E6868A95C7DAD10320Initiate Another SILO Locator Search