Battelle Memorial Institute, Columbus, Ohio. Dept. of Economics and Information Research. (1961). Specialized science information services in the United States: A directory of selected specialized information services in the physical and biological sciences. National Science Foundation, Office of Science Information Service.
Chicago-Zitierstil (17. Ausg.)Battelle Memorial Institute, Columbus, Ohio. Dept. of Economics and Information Research. Specialized Science Information Services in the United States: A Directory of Selected Specialized Information Services in the Physical and Biological Sciences. Washington: National Science Foundation, Office of Science Information Service, 1961.
MLA-Zitierstil (9. Ausg.)Battelle Memorial Institute, Columbus, Ohio. Dept. of Economics and Information Research. Specialized Science Information Services in the United States: A Directory of Selected Specialized Information Services in the Physical and Biological Sciences. National Science Foundation, Office of Science Information Service, 1961.