Cita APA (7th ed.)

(1992). Guide to libraries and information units: In government departments and other organizations (30th ed.). The British Library Science Reference and Information Service.

Cita Chicago (17th ed.)

Guide to Libraries and Information Units: In Government Departments and Other Organizations. 30th ed. London: The British Library Science Reference and Information Service, 1992.

Cita MLA (9th ed.)

Guide to Libraries and Information Units: In Government Departments and Other Organizations. 30th ed. The British Library Science Reference and Information Service, 1992.