Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Volkwein, Jon C.

Dust protection afforded by enclosed cabs on surface and underground mine machinery (BM-TPR 109) Volkwein, Jon C. - Washington Bureau of mines 1979

Subjects--Topical Terms:
VENTILACION EN LAS MINAS
MAQUINAS Y HERRAMIENTAS

Universal Decimal Class. No.: 622.4