Tainstvennyi︠a︡ i︠a︡vlenīi︠a︡ v miri︠e︡ i chelovi︠e︡ki︠e︡
Subtitle: osnovy estestvennago mīrovozzri︠e︡nīi︠a︡
Published: 1931
Place of publication: Monte-Carlo
Language: rus
Number of pages: 663
Subjects: Philosophy of nature; Mysticism