00763cam a2200229 4500 56725 56725 3658945 BD-DhIDS 20260504143259.0 691022s1967 fr 000 0 eng DLC DLC DLC BD-DhIDS 007 OECD 3 Organisation for Economic Co-operation and Development (OECD). The overall level and structure of R & D efforts in OECD member countries. Paris, OECD, 1967. 66 p. 24 cm. text International statistical year for research and development, 1 Includes bibliographical references and index. Research Gross national expenditure OECD member countries ddc BK 0 0 ddc 0 0 NFIC BIDSLDC BIDSLDC GEN 2026-05-04 007 OECD 3 2026-05-04 C-01 2026-05-04 BK