Torthaí cuardaigh - "Classification Books Military science."
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1
Library of Congress classification schedules combined with additions and changes through 1986 Class U Military science
Foilsithe / Cruthaithe 1987LEABHAR -
2
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3
Library of Congress classification schedules combined with additions and changes through 1989 Class U military science
Foilsithe / Cruthaithe 1990LEABHAR -
4