Dva mira - dve morali
By: L.V. Konovalova
Series: V pomoshchʹ lektoru
Publisher: "Znanie"
Published: 1975
Place of publication: Moskva
Language: rus
Number of pages: 40
Notes: At head of title: Obshchestvo "Znanie" RSFSR. Komissiia po propagande znanii sredi molodezhi.

Bibliography: p. [42]

Includes also bibliographical references.