Shklyarsky, D. O., Chentsov, N. N., Yaglom, I. M., Volosov, V. M., & Volosova, I. G. (1979). Selected problems and theorems in elementary mathematics: : arithmetic and algebra. Moscow: MIR Publishers.
Παραπομπή Chicago StyleShklyarsky, D. O., N. N. Chentsov, I. M. Yaglom, V. M. Volosov, and I. G. Volosova. Selected Problems and Theorems in Elementary Mathematics: : Arithmetic and Algebra. Moscow: MIR Publishers, 1979.
Παραπομπή MLAShklyarsky, D. O., et al. Selected Problems and Theorems in Elementary Mathematics: : Arithmetic and Algebra. Moscow: MIR Publishers, 1979.
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