Scientific and technical societies of the United States and Canada
Kohr, John R
Scientific and technical societies of the United States and Canada - 6th ed. - Washington: National Academy of Sciences, 1955 - 447p.
Scientific
Technical
5(07)(061) / J5
Scientific and technical societies of the United States and Canada - 6th ed. - Washington: National Academy of Sciences, 1955 - 447p.
Scientific
Technical
5(07)(061) / J5