cam a22 4500 257098232 CHVBK 20201021143204.0 090609s1986 xx ||||| |||| 10 |eng d (RERO)R005108182 RERO neusbi s1se rero Crop productivity - research imperatives revisited an international conference held at Boyne Highlands Inn, Harbor Springs, Michigan, October 13-18, 1985 and Airlie House, Airlie, Virginia, December 11-13, 1985 org. committee: Charles J. Arntzen ... [et al.]; ed.: Martin Gibbs, Carla Carlson [Lieu de publication non identifié] [éditeur non identifié] [1986] 2 vol. txt rdacontent n rdamedia nc rdacarrier La couv. porte: abundance, technology, institutions, policy, people, scarcity recherche agronomique (RERO)A009988958 rerovoc Produits agricoles (RERO)A021002542 rero Études diverses (RERO)A022249905 rero Actes de congrès (RERO)A021105530 rero Arntzen Charles J. (IDREF)031581153 Gibbs Martin (IDREF)031580238 BK020800 XK020000 XK020000 RERO RE31012 RE31012 RE310120006 QK909.5 14/2 2 RERO RE31012 RE31012 RE310120006 QK909.5 14/1 1 RERO 700 1- Arntzen Charles J. (IDREF)031581153 RERO 700 1- Gibbs Martin (IDREF)031580238 SWISSBIB 130773948