Cita APA (7a ed.)

Armstrong, C. J. (1995). World databases in patents. Bowker-Saur.

Cita Chicago Style (17a ed.)

Armstrong, C. J. World Databases in Patents. London [etc.]: Bowker-Saur, 1995.

Cita MLA (9a ed.)

Armstrong, C. J. World Databases in Patents. Bowker-Saur, 1995.