Vista normal
Vista MARC
Pomroy, William H. (Nombre personal)
Machine generated authority record.
Work cat.: (OSt)0: Hjelmstad, Kenneth E. 1850, Ultra low frequency electromagnetic fire alarm system for underground mines /, 1991.
Machine generated authority record.
Work cat.: (OSt)0: Hjelmstad, Kenneth E. 1850, Ultra low frequency electromagnetic fire alarm system for underground mines /, 1991.