The planet we live on is a remarkable place, with incredible things happening everywhere, all the time. But have you ever wondered how or why these things occur? How the Earth was created? Why lightning strikes? How fossils form? What causes...
Ботаника: морфология и анатомия растений : [Учеб. пособие для пед. ин-тов по биол. и хим. спец. / А. Е. Васильев и др.]. - 2-е изд., перераб. - М. :...