Abstract: Analyses the articles published during 2006-2010 in the journal ‘OCLC Systems & Services’, to find the most frequently cited periodicals by the library and information scientists. A list of 515 most common cited periodicals has been prepared. In addition to this, the study identifies the types of publication cited. Authorship pattern of contributions, country-wise, language-wise and subject-wise distribution of frequently cited periodicals are also included.