APA
Hall James L, . (1977). Online bibliographic database : A directory and sourcebook. London: The Association for Information Management.
Chicago
Hall James L, . 1977. Online bibliographic database : A directory and sourcebook. London: The Association for Information Management.
Harvard
Hall James L, . (1977). Online bibliographic database : A directory and sourcebook. London: The Association for Information Management.
MLA
Hall James L, . Online bibliographic database : A directory and sourcebook. London: The Association for Information Management. 1977.