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Coal
Coal mines and mining
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Transportation
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1by Gyssling, K. W.### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1928Sterkrade, Druck von W. Osterkamp [1928]99, [1] p. 23 cm. -
2by Brun, Roger### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1936Paris, Impr. Gomel-Pottier, 1936.3 p. ̋., [9]-118 p. 25 cm. -
3by Muthmann, Erhard, 1938-### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1967[n.p., 1967]131 p. illus., diagrs. 20 cm. -
4by Hansel, Gerhard, 1933-### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 19671967.58, 5 leaves : ill., maps ; 30 cm. -
5by Schmitz, Bernhard, 1903-### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1927[München, 1927?]80 p. 1 l. incl. tables. 21 cm.