(原始内容存档于2011-06-06). |url-status=和|dead-url=只需其一 (帮助) Lloyd's Biography Page at the Needham Research Institute, Cambridge (页面存档备份,存于互联网档案馆) Picture of Geoffrey Lloyd
0890967237. Murphy, Denis J. (2007). People, Plants and Genes: The Story of Crops and Humanity. 紐約:牛津大學出版社。ISBN 0199207143. (英文)Needham, Joseph and Wang