出典は列挙するだけでなく、脚注などを用いてどの記述の情報源であるかを明記してください。記事の信頼性向上にご協力をお願いいたします。(2012年11月)
Ackerman, E. A. 1958. Geography as a fundamental research descipline. Chicago: University of Chicago.
Abler, R., Adams, J. S., and Gould, P. 1971. Spatial organization: the geographer's view of the world. Englewood Cliffs, N.J.: Prentice-Hall.
Barclay, G. W. 1958. Techniques of population analysis. New York: J. Wiley.
Barry, R. G., and Chorley, R. J. 1968. Atmosphere, weather and climate. New York and London: Routledge.
Berry, B. J. L., and Marble, D. F. 1968. Spatial analysis: a reader in statistical geography. Englewood Cliffs, N.J.: Prentice-Hall.
Bunge, W. W. 1962. Theoretical geography. Lund: Royal University of Lund.