Ne za tridevi͡atʹ zemelʹ.
Series: Novoe v zhizni, nauke, tekhnike.; 6/1972
Publisher: "Znanie,"
Published: 1972
Place of publication: Moskva
Language: rus
Number of pages: 48
Subjects: Science -- Russia.
Notes: At head of title: I͡Uriĭ Druzhnikov.