机读格式显示(MARC)
- 000 00547cam 2200217 a 4500
- 008 060911s1979 maua 000 0 eng d
- 099 __ |a CAL 022000891578
- 245 10 |a Ground control in room-and pillar mining
- 260 __ |a USA: |b BNewYork, |c 1982
- 300 __ |a 157p. (various pagings) : |b ill. ; |c 28 cm.
- 650 _0 |a Microprocessors.