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Lunar photography

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Lunar rovers

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Lunar roving vehicles

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Lunar surface vehicles

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Lyndon B. Johnson Space Center

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Mafia -- United States

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Magazines (Aviation)

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Magazines (Periodicals)

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Magnetic tapes

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Malnutrition

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Manned space flight

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Manuals (instructional materials)

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Manufacturing

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Manuscripts (Documents)

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Maps

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Marching bands

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Marijuana

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Marijuana -- Therapeutic use

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Marine microbiology

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Massachusetts Institute of Technology

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Matchbooks

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Matchbox labels--Russia

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Mathematics

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McCook Field (Ohio)

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Mechanical drawing

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