Bryant, S. J., Graham, G. E., & Wiley, K. G. (1965). Non-routine problems in algebra, geometry & trigonometry. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Bryant, Steven Jerome, G. E. Graham, agus K. G. Wiley. Non-routine Problems in Algebra, Geometry & Trigonometry. New York: McGraw-Hill, 1965.
Lua MLA (9ú heag.)Bryant, Steven Jerome, et al. Non-routine Problems in Algebra, Geometry & Trigonometry. McGraw-Hill, 1965.
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