TY  - BOOK
AU  - Davis,Kary Cadmus
AU  - Gregory,R.W.
TI  - Field-crop enterprises,
AV  - SB187.U6 F5 1946
U1  - 633 
PY  - 1946///]
CY  - Chicago, Philadelphia [etc.]
PB  - J.B. Lippincott company
KW  - Field crops
KW  - United States
N1  - "Revised edition."; "Library books": p. 525. "References" at end of some of the chapters
ER  -