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1by Leonov, ︠I︡U. P. (︠I︡Uriĭ Petrovich)### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1961Moskva, Izd-vo Akademii nauk SSSR, 1961.116 p. illus. 19 cm. -
2by Leonov, ︠I︡U. P. (︠I︡Uriĭ Petrovich)### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1977Moskva : Nauka, 1977.226 p. : ill. ; 22 cm.