TY - BOOK ED - Food and Agriculture organization of the United Nations,Forestry Department ED - Food and Agriculture Organization of the United Nations. TI - Databook on endangered tree and shrub species and provenances T2 - FAO forestry paper no.77 PY - 1986/// CY - Rome PB - Food and Agriculture organization of the United Nations KW - Rare plants KW - Trees,care of KW - Trees conservation ER -