Sinclair, John, 1900- [from old catalog]
Planning and mechanized drifting at collieries / John Sinclair. - London : I. Pitman, c1963. - vii, 358 p. : ill. ; 22 cm.
Includes bibliographical references and index.
64035725
Coal mines and mining.
Mining engineering.
TN802 / .S523 1963
622 / SEP
Planning and mechanized drifting at collieries / John Sinclair. - London : I. Pitman, c1963. - vii, 358 p. : ill. ; 22 cm.
Includes bibliographical references and index.
64035725
Coal mines and mining.
Mining engineering.
TN802 / .S523 1963
622 / SEP