Subgravity state, Physiological effect of -- See Weightlessness Here are entered works on the physiological and psychological effects of environments in which the gravitational forces are zero or markedly lower than the gravity on earth.Works on the physiological effects of normal gravity and of acceleration expressed in g's are entered under Gravity--Physiological effect.Works on the physics or theory of gravitational forces are entered under Gravitation or Gravity.
Subject authorities (Information retrieval) -- See Subject headings Here are entered general works on subject headings and lists of subject headings in the English language. This heading may be further subdivided by subject, e.g. Subject headings--Aeronautics.
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Subject authority files (Information retrieval) -- See Subject headings Here are entered general works on subject headings and lists of subject headings in the English language. This heading may be further subdivided by subject, e.g. Subject headings--Aeronautics.
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Subject authority records (Information retrieval) -- See Subject headings Here are entered general works on subject headings and lists of subject headings in the English language. This heading may be further subdivided by subject, e.g. Subject headings--Aeronautics.
