TY  - GEN
AU  - 
AU  - Berger, Joseph, prepared
TI  - Maize production and the manuring of the maize
PY  - 1962///
CY  - Geneva
PB  - Centre d'Etude De l'Azote
KW  - Maize Production
KW  - Maize
KW  - Manuring
ER  -