APA (7th ed.) Citation

Armstrong, C. J. (1995). World databases in geography and geology. Bowker-Saur.

Chicago Style (17th ed.) Citation

Armstrong, Christopher J. World Databases in Geography and Geology. London [u.a.]: Bowker-Saur, 1995.

MLA (9th ed.) Citation

Armstrong, Christopher J. World Databases in Geography and Geology. Bowker-Saur, 1995.