@misc{Ulrich_George_Henry_Frederick_(1830–1900)_The,
 author={Ulrich, George Henry Frederick (1830–1900)},
 howpublished={online},
 language={eng},
 type={raporty},
 title={The Mount Bischoff tin mines : Mr. Ulrich's report to the directors of the Mount Bischoff Tin Mining Company, Launceston},
 keywords={górnictwo 19w., Australia 19w., Mount Bischoff (Tasmania, Australia)},
}