by Vladimir Stepanovich Sobolev
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Geologo-geokhimicheskie osobennosti neft...
Fedorovskiĭ metod
Petrografiia neogenovykh vulkanicheskikh...
Petrologii͡a︡ trappov
Petrologii͡a︡ verkhneĭ mantii i proiskh...
Stroenie verkhneĭ mantii i sposoby obra...
Chemical contributions to the geology of...
Apatit
Phosphate in Canada
Mineral resources of Canada
Calcium orthophosphates