German longwall mining: Facts and figures
Publisher: Verlag Glückauf, Essen, 1985, Inbunden, 147 sidor, språk engelska, 550 gram, 24,5 x 21,5 cm.
Glückauf-Betriebsbücher; Bd. 32./ Glückauf mining handbooks; v. 32. Includes Illustrations.
Nyskick/ Very good Bibliografi sidor 144-147.