Borko, Harold . Abstracting concepts and methods / Harold Borko and Charles L. Bernier. - New York : Academic Press , 1975. - 250p. : ills ; 22cm . - Library and information science series, NULL NULL; . - Library and information science series, NULL NULL; . Includes index ISBN: 0121186504 USD 25.00 Subjects--Index Terms: ABSTRACTING Dewey Class. No.: 025.4028 / BOR/A