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Subject
- mercer, john h., 1922-198713
- scientific expeditions4
- operation deep freeze3
- byrd, richard evelyn, 1888-19572
- discovery and exploration2
- adélie penguin1
- buildings1
- glacier (icebreaker)1
- little america v (antarctica : research station)1
- meteorological stations1
- military bases1
- polar regions1
- richardson highway (alaska)1
- united states. navy1
- united states. navy. seabees1