Tri sydʹby
Subtitle: Postizhenie mira
Contributors: Livanova, Anna
Series: Zhiznʹ zamechatelʹnykh ideĭ -- vyp. 2
Publisher: "Znanie,"
Published: 1969
Place of publication: Moskva
Language: rus
Number of pages: 352
Subjects: Geometry, Non-Euclidean; History
Other titles: Postizhenie mira.
Notes: At head of title : Anna Livanova.

In Cyrillic characters.