One hundred problems in elementary mathematics / HugoSteinhaus ; With a foreword by Martin Gardner. Sto zadań. English Steinhaus, Hugo, 1887-1972. Mathematics Problems, exercises, etc. QA43 .S783 511.9 STO Translation of Sto zadań. English version is a revised ed., translated by Mr. Bharucha-Reid. New York, Basic Books 1964. 1964. 1964 Text 174 p. : eng engpol