books.google.com.uahttps://books.google.com.ua/books/about/%D0%94%D0%B5%D0%B2%D0%BE%D0%BD%D1%81%D0%BA%D0%B0%D1%8F_%D1%84%D0%BB%D0%BE%D1%80%D0%B0_%D0%B1%D0%BE%D0%BB%D1%8C%D1%88.html?hl=ru&id=qppolhQIotYC&utm_source=gb-gplus-shareДевонская флора большого донбасса
