Лесные питомники: Методические указания для проведения практических занятий по курсу «Лесные культуры», страница 29

7. Проектирование типов лесных культур………………………………

8. Расчет энергетической стоимости затрат труда и использования

механизмов при создании лесных культур……………………………..

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