Text ( visual ) : unmediated Sectoral balance : a survey / Amitava Krishna Dutt. -- rev.. -- Helsinki, Finland : World Institute for Development Economics Research of the United Nations University , 1989. -- 109 p. ; 21 cm. -- (WIDER working papers ; WP 56). -- "Revised, October 1988." -- T.p. ; "March 1989"--Cover ; Bibliography: p. 90-109. -- (BA35003891) ; https://ci.nii.ac.jp/ncid/BA35003891 Author Heading(s): Dutt, Amitava Krishna ; World Institute for Development Economics Research. -- Classification(s): LCC : MLCS 92/17614 (H). -- Subject Heading(s): LCSH : Economic development