Cita APA (7a ed.)

Hemmings, M. (1985). Downloading from commercial online databases: A survey of recent developments in online information retrieval. British Library].

Cita Chicago Style (17a ed.)

Hemmings, Margaret. Downloading from Commercial Online Databases: A Survey of Recent Developments in Online Information Retrieval. [London: British Library], 1985.

Cita MLA (9a ed.)

Hemmings, Margaret. Downloading from Commercial Online Databases: A Survey of Recent Developments in Online Information Retrieval. British Library], 1985.