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限定条件 ((来源机构：美国地质调查局) AND (作者：Jacobson, Robert B. rjacobson@usgs.gov))
共28条，第1-20条
Jacobson, Robert B. rjacobson@usgs.gov 3 Braaten, Patrick J. pbraaten@usgs.gov 2 Chojnacki, Kimberly A. kchojnacki@usgs.gov 2
Delonay, Aaron J. adelonay@usgs.gov 2 Elliott, Caroline M. celliott@usgs.gov 2 Erwin, Susannah O. serwin@usgs.gov 2
Mestl, Gerald E. 2 Albers, Janice L. 1 Annis, Mandy L. mannis@usgs.gov 1
Backes, Kenneth M. 1 Buhl, Kevin J. kevin_buhl@usgs.gov 1 Bulliner, Edward A. ebulliner@usgs.gov 1
Candrl, James S. jcandrl@usgs.gov 1 Colvin, Michael E. 1 Eder, Brandon L. 1
Faulkner, Jacob D.A. jfaulkner@usgs.gov 1 Fuller, David B. 1 Fuller, David B 1
Haas, Justin D. 1 Haddix, Tyler M. 1