id author title date pages extension mime words sentence flesch summary cache txt crl-10681 Hamlin, Arthur T. Membership Distribution Becomes a Reality 1952-06-30 1 .pdf application/pdf 507 28 58 Advertising income is important, and Col- lege and Research Libraries charges have been nearly doubled because of circulation mcreases. The advertisements re- flect interest in problems and needs of col- lege libraries and a desire to cooperate in professional activities. cache/crl-10681.pdf txt/crl-10681.txt