id author title date pages extension mime words sentence flesch summary cache txt crl-12333 American Library Association, Letters 1971-07-01 2 .pdf application/pdf 1189 55 63 The obviously significant factor, the number of holds on a book out in circulation, has been used for duplicate purchasing in small libraries from time immemorial. Elrod, as those who know his work can testify, is one of the fine minds in technical processes, one who ques- tions every aspect of everything. cache/crl-12333.pdf txt/crl-12333.txt