Abbott, E. A., Lindgren, W. F., & Banchoff, T. (2010). Flatland. Cambridge University Press : Mathematical Association of America.
Chicago-čujuhus (17. p.)Abbott, Edwin Abbott, William F. Lindgren, juo Thomas Banchoff. Flatland. Cambridge ; New York ; Washington, District of Columbia: Cambridge University Press : Mathematical Association of America, 2010.
MLA-čujuhus (9. p.)Abbott, Edwin Abbott, et al. Flatland. Cambridge University Press : Mathematical Association of America, 2010.
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