00672naa#a2200169#i#450# EN\\bibl\17013 20240623214019.7 2312-4431 20170609b2017####ek#y0engy0150####ca RU SOCIAL AND ENVIRONMENTAL PROJECT "WE ARE YOUR FRIENDS, NATURE" Journal article Cheboksary Non-state educational private institution of additional professional education "Expert-methodological centre" 2017 4 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Murav'eva Elena Evgen'evna naukaru.ru