00377nam a2200097   450000100070000000500170000700800360002410000770006024500740013726400680021101249620260807101700.0260101s1991    pe      000 0 eng  d1 aGwendolyn Lewise Werth Luttrell ; Marilyn L. Hubert ; Cynthia R. Murdock10aLexicon of New Formal Geological Names of the United States 1981-1985 1aWashington D.C.bUnited States Government Printing Officec1991