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Pequignot, C. A.

Tunnels and tunnelling C. A. Pequignot - xii, 55p. -- 23 cm.

Incluye: Index, bibliography BIBLIOTECA: UACH-FING

Subjects--Topical Terms:
Tuneles
Perforadoras de roca
Tuneles

Dewey Class. No.: 624.19 / PEQ 1963