Imperial Institute (Great Britain), Great Britain. Imperial Mineral Resources Bureau, & Stone, G. (1920). The Mining laws of the British Empire and of foreign countries. H.M.S.O..
Citace podle Chicago (17th ed.)Imperial Institute (Great Britain), Great Britain. Imperial Mineral Resources Bureau, a Gilbert Stone. The Mining Laws of the British Empire and of Foreign Countries. London: H.M.S.O., 1920.
Citace podle MLA (8th ed.)Imperial Institute (Great Britain), et al. The Mining Laws of the British Empire and of Foreign Countries. H.M.S.O., 1920.
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