TY  - BOOK
AU  -  Berger,Joseph
TI  -  Maize production and the manuring of maize / 
U1  -  633.15 
PY  - 1962///
CY  -  Geneva : 
PB  -  Centre d'Etude de l'Azote, 
KW  -  Maize production
KW  -  Maize manuring
N1  -  Includes bibliographical references and index
ER  -