TY  - BOOK
AU  - Day, Peter Russell
AU  - Jonson, Samuel.
TI  - How crops grow, a century later ; a series of lectures to celebrate the centennial of how crops grow by Samuel W. Johnson, 1868
T2  - Connecticut Agr. Exp. Sta. Bulletin
U1  - 633 
PY  - 1969///
CY  - New Haven
PB  - Connecticut Agricultural Experiment Station
KW  - Cultivos
ER  -