(1971). Nebraska droughts: A study of their past chronological and spatial extent with implications for the future. Nebraska Water Resources Research Inst.
Chicago-Zitierstil (17. Ausg.)Nebraska Droughts: A Study of Their Past Chronological and Spatial Extent with Implications for the Future. Lincoln, Neb: Nebraska Water Resources Research Inst, 1971.
MLA-Zitierstil (9. Ausg.)Nebraska Droughts: A Study of Their Past Chronological and Spatial Extent with Implications for the Future. Nebraska Water Resources Research Inst, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.