Integrated library systems (Computer systems) -- Planning : LC21 : a digital strategy for the Library of Congress / Committee on an Information Technology Strategy for the Library of Congress, Computer Science and Telecommunications Board, Commission on Physical Sciences, Mathematics, and Applications, National Research Council
Integrated library systems (Computer systems) -- United States -- Planning : LC21 : a digital strategy for the Library of Congress / Committee on an Information Technology Strategy for the Library of Congress, Computer Science and Telecommunications Board, Commission on Physical Sciences, Mathematics, and Applications, National Research Council