Dokucaev, V. (1892). Materialien z. Studium der Urformation Rußlands.
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Tohutoru Kātū Chicago (17th ed.)
Dokucaev, Vasilij. Materialien Z. Studium Der Urformation Rußlands. At.Petersburg, 1892.
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Tohutoro MLA (9th ed.)
Dokucaev, Vasilij. Materialien Z. Studium Der Urformation Rußlands. 1892.
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