TY  - BOOK
AU  - J. Petr
AU  -  V. Cerny  L. Hruska
TI  - Field formation in the main field crops
SN  - 0-444-98954-4
U1  - 633 
PY  - 1988///
CY  - Amsterdam
PB  - Elsevier Publishing
N1  - J. Petr; V. Cerny & L. Hruska: Field formation in the main field crops.  Amsterdam.  Elsevier Publishing, 1988. 0-444-98954-4--(633PET)
ER  -