Selected problems and theorems in elementary mathematics arithmetic and algebra /
Shklyarsky, D. O.
Chentsov, N. N.
Iaghom, I. M.
Volosov, V. M.
Volsova, I. G.
Moscow Mir Publishers [London] [Distributed by Central Books]
1979
With answers
Translation and revision of: 'Izlerrannye zadachi i teoremy elementarn o i matematiki'. Moska : Nouka, 1976
Algebra