. . . . "2013-07-25" . . . . . "Petroleum and natural-gas fields in Wyoming / by Ralph H. Espach and H. Dale Nichols, 1941. - . - LC online cat.. - http://catalog.loc.gov. - 2003-04-01"@fr . "male" . . . "2013-07-24"^^ . "Espach" . . . . . . . "1997-07-01" . "0000000000128099" . . . . "1900"^^ . "VIAF" . . . . . . "11059102"^^ . . . . . . "Ralph Homeward" . "Ralph Homeward Espach"@fr . . "Ralph Homeward Espach" . .