Le Rossignol, Keith. Official commercial representation abroad; a handbook for officer s of developing countries. - Geneva : International Trade Centre, 1973. - xiv, 385 p. : illus. ; 23 cm. LCCN: 74-167419 Subjects--Topical Terms: Foreign trade promotion -- Handbooks, manual s, etc.-- Developing countries Export marketing -- Handbooks, manuals, etc. Commercial attachés -- Handbooks, manuals, etc.