sky

Link:
[] [] [] [] [] [] [] [] [] Newspaper: [] Book: Child, Lois. "The Japanses Knotweed manual." n. pag. Web. 25 Apr 2010. [|http://books.google.][|com/books?id=VtWpIjO7SgcC&pg=PA87&dq=Japanese+Knotweed+manual&hl=en&ei=8PHUS7j6LsP_lge_voHtDA&sa=X&oi=book_result&ct=result&resnum=2&ved=0CDwQ6AEwAQ#v=onepage&q=Japanese%20Knotweed%20manual&f=false]. book 02： ||
 * Barbara, W.Ellis. "Taylor's guide to perennials." n. pag. Web. 25 Apr 2010. .