TY  - BOOK
AU  - Sparre, Per
AU  - Ursin, Erik
AU  - Venema, Siebren C.
TI  - Introduction to Tropical Fish Stock Assessment Part 2- Exercises: FAO Fisheries Technical Paper No.311 (T311)
PY  - 1989///,
CY  - Rome
PB  - Food and Agriculture Organization
UR  - http://www.fao.org/docrep/W5448E/W5448E00.htm
ER  -