Jocteur Monrozier, Bertrand Feasibility of charging for trade information services by organizations concerned with trade promotion / by Mrr. B. Jocteur Monrozier. - iv, 41 pages ; 28 cm "project no. INT/47/34" Subjects--Topical Terms: Dış ticaret promosyonu--Information services LC Class. No.: HF1417.5 / .J63 1988