TY  - BOOK
AU  - R.Jones
TI  - Assessing the Effects of Changes in Exploitation Pattern Using Length composition data( With notes on VPA and Cohort Analysis 
T2  - FAO fisheries Technical Paper 256
SN  - 9251021813
U1  - 639.2 
PY  - 1984///
CY  - Rome 
PB  - FAO of the United Nations 
ER  -