TY - BOOK AU - Obruchev,V.A. TI - Plutonia SN - 5050016916 U1 - 891.734 OBR PY - 1957/// CY - Moscow, Chicago, Ill. PB - Raduga Publishers, Imported by Imported Publications, Inc. KW - Science fiction KW - Primitive societies KW - Animals, Fossil KW - Interplanetary voyages N1 - Translation of: Plutonii︠a︡ ER -