Sommerville, D. M. Y. (1934). Analytical geometry of three dimensions. Cambridge University Press.
Čikaški stil citiranja (17. izdanje)Sommerville, D. M. Y. Analytical Geometry of Three Dimensions. London: Cambridge University Press, 1934.
MLA način citiranja (9. izdanje)Sommerville, D. M. Y. Analytical Geometry of Three Dimensions. Cambridge University Press, 1934.
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