TY - BOOK ED - UNESCO TI - Plant-water relationships in arid and semi-arid conditions: reviews of research T2 - Arid zone research, U1 - 581 23 PY - 1960/// CY - Paris PB - UNESCO KW - Plant-water relationships KW - Botany KW - Research KW - Arid regions N1 - "The contents of this volume were made available to the participants in the Symposium on Plant-Water Relationships, organized jointly by Unesco and the Spanish authorities and held in Madrid in September 1959."; Includes bibliographical references and index ER -