TY  - BOOK
AU  - Hewitt W B Ed.
AU  -  Chiarappa L Ed.
TI  - Plant health and quarantive in international transfer of genetic resources
U1  - I,178:4-6, L7 
PY  - 1977///
CY  - Cleveland
PB  - CRC         
KW  -  Seeds
KW  - Botany
ER  -