Oni dolzhny zhitʹ. Mlekopitai︠u︡shchie.
Contributors: Cherkasova, Marii︠a︡ Valentinovna.*; Gorbatov, Vadim Alekseevich.*
Publisher: Lesnai︠a︡ promyshlennostʹ
Published: 1982
Place of publication: Moskva
Language: rus
Number of pages: 64