TY  - BOOK
AU  - Harlan,Jack R.
TI  - Crops & man
T2  - Foundations for modern crop science series
SN  - 089118032X
AV  - SB71 .H3
U1  - 633/.009 
PY  - 1975///
CY  - Madison, Wis.
PB  - American Society of Agronomy
KW  - Agriculture
KW  - History
KW  - Crops
N1  - Includes index; Bibliography: p. 271-286
ER  -