00339nam a2200109Ia 4500082001900000100002100019245009100040260006700131300002100198500000500219700000500224  a029.5bG231.CI  aGarfield, Eugene  aCitation indexing ; its theory and application in science, technology and humanitiesb  aPhiladelphiabInstitute for Scientific Information Pressc1979  axix, 274p. Index  a  a