TY - BOOK AU - Boon,Gerard Karel TI - Economic choice of human and physical factors in production: an attempt to measure the micro-economic and macro-economic possibilities of variation in factor proportions of productions T2 - Contributions to economic analysis AV - HD57 .B58 PY - 1964/// CY - Amsterdam PB - North-Holland Pub. Co. KW - Labor productivity KW - Local KW - Economic development KW - Developing Countries N1 - Bibliography: p. 323-325 ER -