Explanatory Dictionary of Concepts and Terms, (I should have uploaded this a long time ago - my apologies.)
DICTIONARY: Ethnogenesis and the Biosphere, Gumilev
DICTIONARY: Ethnogenesis and the Biosphere…
DICTIONARY: Ethnogenesis and the Biosphere, Gumilev
Explanatory Dictionary of Concepts and Terms, (I should have uploaded this a long time ago - my apologies.)