Better crops for food
Inhalt Karte:541,006 O’ CONNOR MAEVE /red.] Better crops for food. Symposium... held at the Ciba Foundation, London, 14—16 September 1982. Ed.—S: Jonathan Nugent and Maeve O’Connor. London 1983 Pitman 8° s. VIII, 248, il. Ciba Foundation Symposium 97