TY  - BOOK
AU  - Beddington, John R.
AU  - Retting, Bruce R.
TI  - Approaches to the  regulation of fishing effort: FAO fisheries Technical paper 243 
SN  - 9251014922
AV  - SH323.B4 
PY  - 1983///
CY  - Rome
PB  - FAO
ER  -