TY  - BOOK
AU  - M.J.A.Butler
AU  - C .LeBlanc
TI  - Marine Resource Mapping: an Introductory Manual
T2  - FAO Fisheries Technical Paper No.274
SN  - 925102544
U1  - 639.2 
PY  - 1987///
CY  - Rome
PB  - FAO of the United Nations
ER  -