For citations:
Petrina O.A. DEVELOPMENT OF VOLUNTARY ACTIVITY IN RUSSIA. Vestnik Universiteta. 2019;(4):163-167. (In Russ.) https://doi.org/10.26425/1816-4277-2019-4-163-167
Petrina O.A. DEVELOPMENT OF VOLUNTARY ACTIVITY IN RUSSIA. Vestnik Universiteta. 2019;(4):163-167. (In Russ.) https://doi.org/10.26425/1816-4277-2019-4-163-167