"Great Soviet Encyclopedia (D)" is one of the largest and most authoritative sources of knowledge in the Soviet Union. This encyclopedia contains invaluable information on more than 100,000 articles from various scientific fields, art, technology, culture and history. The publication contains many illustrations, diagrams, diagrams and maps, which makes the process of assimilating information even more interesting and understandable. "The Great Soviet Encyclopedia (D)" is an indispensable reference material for any seeker of knowledge and those who wish to deepen their erudition.