TY  - BOOK
AU  -  Gray,Howard Levi
TI  -  English field systems / 
U1  -  333.760942 GRA 
PY  - 1915///
CY  -  Cambridge : 
PB  -  Harvard University Press, 
KW  -  Agriculture
KW  -  England
KW  -  Land tenure
KW  -  Great Britain
KW  -  Commons
KW  -  Inclosures
ER  -