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54 ENVIRONMENTAL SCIENCES
2
02 PETROLEUM
1
03 NATURAL GAS
1
ALASKA
1
ARCTIC OCEAN
1
CHEMICAL REACTIONS
1
CORROSION
1
DATA BASE MANAGEMENT
1
EXPLORATION
1
FEASIBILITY STUDIES
1
FEDERAL REGION X
1
GEOLOGIC DEPOSITS
1
GEOPHYSICAL SURVEYS
1
ICE
1
ICEBERGS
1
MANAGEMENT
1
MINERAL RESOURCES
1
NATURAL GAS DEPOSITS
1
NORTH AMERICA
1
OFFSHORE SITES
1
PERMAFROST
1
PETROLEUM DEPOSITS
1
PIPELINES
1
PRODUCTION
1
RESEARCH PROGRAMS
1
RESOURCE DEVELOPMENT
1
RESOURCES
1
SEA BED
1
SEAS
1
SEISMIC SURVEYS
1
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