The conquest of famine /

by Aykroyd, Wallace Ruddell
Published 1974

The conquest of famine /

by Aykroyd, Wallace Ruddell n. 1899, Aykroyd, Wallace Ruddell n. 1899
Published 1975

El trigo en la alimentación humana /

by Aykroyd, Wallace Ruddell n. 1899, Aykroyd, Wallace Ruddell n. 1899, Doughty, Joyce
Published 1970

Las leguminosas en la nutrición humana /

by Aykroyd, Wallace Ruddell n. 1899, Aykroyd, Wallace Ruddell n. 1899, Doughty, Joyce
Published 1964