The resolution of the Council of Ministers of the BSSR on the approval of the General Regulations of the Universal Postal Union, the Universal Postal Convention and its Executive Regulations, the Agreement on Postal Parcels was adopted
Resolution No. 179 of the Council of Ministers of the BSSR «On Approval of the General Regulations of the Universal Postal Union, the Universal Postal Convention and its Executive Regulations, the Agreement on Postal Parcels» НАРБ. Ф. 7. Оп. 5. Д. 8327. Л. 1. The original. Typewriting.