Survival or extinction : proceedings of a conference held at the Royal Botanic Gardens, Kew, entitled The Practical Role of Botanic Gardens in the Conservation of Rare and Threatened Plants, 11-17 September 1978 - Synge, Hugh; Townsend, Harry, (D. W. Harry); Royal Botanic Gardens, Kew. (Kew : The Bentham-Moxon Trust, 1979)
Keywords: CONSERVACION DE LAS PLANTAS -- CONGRESOS, CONFERENCIAS, ETC; JARDINES BOTANICOS -- CONGRESOS, CONFERENCIAS, ETC; PLANTAS EN PELIGRO DE EXTINCION -- CONGRESOS, CONFERENCIAS,ETC