TY - BOOK ED - United Nations. TI - Approaches and methods used in long-term social planning and policy-making: conclusions of the Seminar at Arc-et-Senans, France (3-10 May 1972) and collection of working papers submitted to the Seminar AV - JX1977 .A2 ECE/EC.AD/3 U1 - 309.2'12'018 PY - 1973///] CY - New York PB - United Nations KW - Social planning KW - System analysis KW - Social indicators N1 - "United Nations publication. Sales no. E.73.II.E.7."; At head of title: Economic Commission for Europe; Includes bibliographical references N2 - This collection is based on the documentation assembled for a Seminar on Methods Used in Long-Term Social Planning and Policy-Making, which was held at Arc-et-Senans (France) from 3 to 10 May 1972 in pursuance of a decision by the E/ECE/ECON.ADVICERS/2, paragraph 50(b) ER -