Kumasaka, Yuzo Japan's trade surplus since the G-5 meeting of September 1985 / Yuzo Kumasaka - New York : Department of International Economic and Social Affairs (DIESA) , 1987 - 23p. : ill. ; 28 cm. - DIESA working paper series, no. 3 . Includes bibliographical references. Subjects--Topical Terms: Mathematical models Gov. Doc. Class. No.: UN DIESA WP-3