Walker A, . (2001). Encyclopedia of Wood: A tree-by-Tree Guide to theWorld's most Versatile Resource. London: Quantum book.
Walker A, . 2001. Encyclopedia of Wood: A tree-by-Tree Guide to theWorld's most Versatile Resource. London: Quantum book.
Walker A, . Encyclopedia of Wood: A tree-by-Tree Guide to theWorld's most Versatile Resource. London: Quantum book. 2001.