Idelson, N. I. Potential Theory with Applications to the Theory of the Earth's Figure and Geophysics (Teoriya potentsiala s prilozheniyami k teorii figury Zemli i geofizike), 1936. In Russian

Идельсон, Н. И. Теория потенциала с приложениями к теории фигуры Земли и геофизике.
Ленинград - Москва: ОНТИ НКТП, 1936.
424 стр. Твердый переплет, обычный формат.
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Idelson, N. I. Teoriya potentsiala s prilozheniyami k teorii figury Zemli i geofizike. [Potential Theory with Applications to the Theory of the Earth's Figure and Geophysics].
Leningrad - Moscow: ONTI NKTP (United Scientific and Technical Publishing House of the People's Commissariat of Heavy Industry), 1936.
424 pp. Hardcover, standard format.

This 1936 monograph by Naum Ilyich Idelson (1885–1951), a prominent Soviet astronomer and theoretical geodesist, is a classic work in the field of geophysics and celestial mechanics. The book provides a rigorous mathematical exposition of potential theory and its fundamental applications to two key problems: determining the precise figure (shape) of the Earth and solving various tasks in theoretical geophysics. Published by the United Scientific and Technical Publishing House (ONTI) of the People's Commissariat of Heavy Industry during a period of intense development in Soviet exact sciences, this volume represents a significant contribution to the country's scientific and technical literature. It served as an essential reference and textbook for specialists in geodesy, geophysics, astronomy, and applied mathematics.