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OCCURRENCE OF PHOSPHORUS AND NITROGEN IN SALT CREEK AT LINCOLN, NEBRASKA.ENGBERG RA; RENSCHLER TO.1971; GEOL. SURV. U.S.A., PROF. PAPER; USA; 1971, NUM. 0750-0227Miscellaneous

WRI 81-58GEOHYDROLOGIC RECONNAISSANCE OF THE CROFTON UNIT, NORTHEASTERN NEBRASKA = WRI 81-58: RECONNAISSANCE HYDROGEOLOGIQUE DE L'UNITE CROFTON, NORD-EST DU NEBRASKAKENT SJ; ENGBERG RA; ELLIS MJ et al.1981; WATER-RESOUR. INVEST.; ISSN 0092-332X; USA; DA. 1981; PB-82 129 115 WRI 81-58; 40Serial Issue