TY  - BOOK
AU  - Johnson, Douglas
TI  - Centro internacional de agricultura tropical: : good quality bean seed: study guide to be used as a suppliment to the audiotutorial unit on the same topic
AV  - BOT QKSB741.J6 
PY  - 1981///
CY  - Cali
PB  - Centro Internacional de Agricultura Tropical
KW  - Seeds
KW  - Bean seed
N1  - Bibliography
ER  -