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☞ http://commons.m.wikimedia.org/wiki/Category:Factory_icons
☞ Mass media http://en.wikipedia.org/wiki/Mass_media

☞ KS3, GCSE, IB History Wiki http://history-wiki.wikispaces.com/ib_ww1

☞ カナダ兵士とソリの持ち主。そして背景に丸太小屋(ロシア人の開拓村？)：The Canada soldier and owner of the horsesled. And log house (background= Russians' exploitation village ?)：캐나다 병사와 썰매의 주인. 그리고 배경으로 로그하우스(log house)(러시아인의 개척 마을?)：加拿大士兵和橇的持有者。又为背景圆木窝棚(俄罗斯人的开荒村？)
http://commons.wikimedia.org/wiki/File:Canadian_gunners_with_two_Russian_sleigh_drivers_in_Siberian_Expedition.jpg http://commons.m.wikimedia.org/wiki/Category:Trojan_horse

☞ Mass production
http://commons.m.wikimedia.org/wiki/File:Shell_workers_at_Chilwell_1917_IWM_Q_30016.jpg