na INLIS000000000009278 Ind 0010-1118009278 Soviet science : a symposium presented on December 27, 1951 at the Philadelphia meeting of the American Association for the Advancement of science SYMPOSIUM OF THE AMERICAN ASSOCIATION FOR THE ADVANCEMENT SCIENCE (1951 : Philadelphia) Ed. by Rith C. Christman Washington American Association for the Advancement of Science 1952 v, 108 p.; 23 cm. v, 108 p.; 23 cm. 501(47)SYMs 501(47) NATURAL SCIENCE SOVIET 864/57-mfn11057