00330nam a2200109Ia 4500008004100000082001200041100004100053245006300094260004000157260000900197650001400206261001s9999    xx            000 0 und d  a001 MIN  aThe Instituation 0f Mining Engineers 0aSymposium on the prevention of spontaneous combustayn 1970  bThe Institution of Mining Engineers  c1971  aGeneralia