| http://www.w3.org/ns/prov#value | - Chto my stroim (What We Are Building, 1930) by L. Savel???ev (pseudonym of Leonid Lipavskii) and Vladimir Tambi lists various kinds of construction projects (including power-stations and the Turksib railway), leaving space for children to add more new objects as they arise and as the children learn about them from school, newspapers, radio and other media.
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