a measure for quality (structure, organization) of environment and its separate elements irrespective of forms of exchanging.
Поиск
По запросу «Ecological value» — результатов: 1: на: Русский
По запросу «Ecological value» — результатов: 1: на: Русский
a measure for quality (structure, organization) of environment and its separate elements irrespective of forms of exchanging.