Gouschev, S., & Vassiliev, M. (1960). Russian science in the 21th century. New York: McGraw-Hill Book Company.
Παραπομπή Chicago StyleGouschev, Sergei, and Mikhail Vassiliev. Russian Science in the 21th Century. New York: McGraw-Hill Book Company, 1960.
Παραπομπή MLAGouschev, Sergei, and Mikhail Vassiliev. Russian Science in the 21th Century. New York: McGraw-Hill Book Company, 1960.
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