Dirac, P. The Principles of Quantum Mechanics (Printsipy kvantovoy mekhaniki), 1979. In Russian

Дирак П. Принципы квантовой механики.
Перевод с четвертого английского издания Ю. Н. Демкова, Г. Ф. Друкарева. Под редакцией и с предисловием В. А. Фока. 2-е издание.
Москва: Наука, 1979. — 480 с., [1] л. портр. : граф.; 20 см. — (Библиотека теоретической физики / ред. Д. В. Ширков).
Твердый переплет, обычный формат.
***
Dirac, P. Printsipy kvantovoy mekhaniki. [The Principles of Quantum Mechanics].
Translated from the fourth English edition by Yu. N. Demkov, G. F. Drukarev. Edited and with a preface by V. A. Fock. 2nd edition.
Moscow: Nauka, 1979. 480 p., [1] leaf portr. : ill.; 20 cm. (Library of Theoretical Physics / ed. D. V. Shirkov).
Hardcover, regular format.

This is the esteemed 1979 Soviet edition of Paul Dirac's foundational and legendary monograph, "The Principles of Quantum Mechanics." First published in 1930, the book by the Nobel laureate (1933) and one of the principal architects of quantum theory represents a masterpiece of scientific literature, combining mathematical rigor with profound physical insight. This second Russian edition, translated from the fourth English version by notable physicists Yu.N. Demkov and G.F. Drukarev, was meticulously prepared under the editorship of the great Soviet theoretician V.A. Fock, whose preface adds significant scholarly value. Published in the authoritative "Library of Theoretical Physics" series by "Nauka," this hardcover volume presents Dirac's original and systematic development of quantum theory, including his iconic bra-ket notation. It served as an essential textbook and reference for generations of Soviet and Russian physicists, mathematicians, and philosophers of science. This edition is not merely a translation but a high-quality scholarly publication that facilitated the deep assimilation of quantum mechanics within the Soviet scientific tradition.