TY  - BOOK
AU  - Boerner, E.G
TI  - Improved apparatus for determining the test weight of grain, with a standard method of making the test
CY  - Washington
PB  -  Department of Agriculture
KW  - Cereales
KW  -  Mejoramiento  Agricultura
KW  -  instrumentos  Semillas
KW  -  Peso
ER  -