a spread form of phenological reference books on seasonal dynamics, indicating phenomena and phenodates of their coming in the world of nature (at a level of particular terrain, district, province).
«Натуре календар» бўйича 1 та натижа: Ўзбекчага
a spread form of phenological reference books on seasonal dynamics, indicating phenomena and phenodates of their coming in the world of nature (at a level of particular terrain, district, province).