Business Day. (1980). Highlights of the USSR foreign trade. Businessday Corp.].
Citazione stile Chigago Style (17a edizione)Business Day. Highlights of the USSR Foreign Trade. [Quezon City: Businessday Corp.], 1980.
Citatione MLA (9a ed.)Business Day. Highlights of the USSR Foreign Trade. Businessday Corp.], 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.