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| 地質時間目盛 Geological Terms Dictionary (Bruce Bain and Leslie Oberman) ; 地質学的時間 Geological Terms Dictionary (Bruce Bain and Leslie Oberman) ; 地質年代 Geological Terms Dictionary (Bruce Bain and Leslie Oberman) | |||
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| 地質時間目盛 Geological Terms Dictionary (Bruce Bain and Leslie Oberman) ; 地質学的時間 Geological Terms Dictionary (Bruce Bain and Leslie Oberman) ; 地質年代 Geological Terms Dictionary (Bruce Bain and Leslie Oberman) | |||
