Earth and Sky Every Child Should Know
Easy studies of the earth and the stars for any time and place
Julia Ellen Rogers
英文收录于 2010-05-30公版作品
《Earth and Sky Every Child Should Know
Easy studies of the earth and the stars for any time and place》，Julia Ellen Rogers。这是一部关于儿童、科学、艺术的公版作品，适合在安静的片刻里慢慢读下去。