Walters, M., & Lavelle, M. (2012). The illustrated encyclopedia of wild flowers & flora of the world: An expert reference and identification guide to over 1730 wild flowers and plants from every continent ; 3800 beautiful illustrations, maps and photographs. Lorenz Books.
Cita Chicago (17th ed.)Walters, Martin, i Michael Lavelle. The Illustrated Encyclopedia of Wild Flowers & Flora of the World: An Expert Reference and Identification Guide to over 1730 Wild Flowers and Plants from Every Continent ; 3800 Beautiful Illustrations, Maps and Photographs. Leicestershire: Lorenz Books, 2012.
Cita MLA (9th ed.)Walters, Martin, i Michael Lavelle. The Illustrated Encyclopedia of Wild Flowers & Flora of the World: An Expert Reference and Identification Guide to over 1730 Wild Flowers and Plants from Every Continent ; 3800 Beautiful Illustrations, Maps and Photographs. Lorenz Books, 2012.