"Geophysics Abstracts Periodicals." . . "Earth sciences." . . . . "Geophysics." . . . . . . . . . . . . . . "Abstracts"@en . . "Periodicals"@en . . . . . . . "Geophysical abstracts, 162 July-September 1955"@en . "Geological Survey (U.S.)," . . "Earth sciences Abstracts Periodicals." . .