TY  - BOOK
AU  - Per Sparre
AU  - Erik Ursin
TI  - Introduction to Tropical Fish Stock Assessment Part 2- Exercises
T2  - FAO Fisheries Technical Paper No.306/2
SN  - 9251028826
U1  - 639.20 
PY  - 1989///
CY  - Rome
PB  - FAO of the United Nations
ER  -