Tsypkin, A. G., Pinsky, A. I., Blagodatskikh, V. I., & Aleksanova, I. (1986). Methods of solving problems in high-school mathematics. Moscow: MIR Publishers.
Παραπομπή Chicago StyleTsypkin, A. G., A. I. Pinsky, V. I. Blagodatskikh, and Irene Aleksanova. Methods of Solving Problems in High-school Mathematics. Moscow: MIR Publishers, 1986.
Παραπομπή MLATsypkin, A. G., A. I. Pinsky, V. I. Blagodatskikh, and Irene Aleksanova. Methods of Solving Problems in High-school Mathematics. Moscow: MIR Publishers, 1986.
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