Laws, B. (2010). Fifty plants that changed the course of history. David & Charles.
Chicago Style (17th ed.) CitationLaws, Bill. Fifty Plants That Changed the Course of History. Newton Abbot, Devon [England]: David & Charles, 2010.
MLA (9th ed.) CitationLaws, Bill. Fifty Plants That Changed the Course of History. David & Charles, 2010.
Warning: These citations may not always be 100% accurate.