World plant conservation: Bibliography.
London: Royal Botanic Gardens, 1990. Octavo, paperback, Very comprehensive bibliographical reference to international, national and local literature on plant conservaton - over 10,000 references. More
London: Royal Botanic Gardens, 1990. Octavo, paperback, Very comprehensive bibliographical reference to international, national and local literature on plant conservaton - over 10,000 references. More
Sydney: JNCC, 1993. Quarto, softcover. More