Техническое творчество пионеров и школьникоа Свердловской области.

Техническое творчество пионеров и школьникоа Свердловской области.

172 Pages · 1960 · 10.84 MB · Russian
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“ Before you speak, let your words pass through three gates: Is it true? Is it necessary? Is it kind? ” ― Rumi
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