TY  - BOOK
AU  - Graaf, de Gertyjan
TI  - Geographic information systems in fisheries  management and planning: technical manual 
SN  - 978-92-510-4999-0
U1  - 639.2 GRA 
PY  - 2003///
CY  - Rome
PB  -  Food and Agriculture Organization of the United Nations
KW  - Fishery - technology
ER  -