000			00391nam a2200133Ia 4500
008			151018s9999 xx 000 0 und d
080			_aF639.2:31 _bGUL-M
100			_aGulland, J. A.
245			_aManual of methods for fish stock assessment _b: Fish population analysis
260			_c1969
300			_a1p. vii 154p.
500			_aFAO manuals in fisheries science no- 4
942			_cFAO _2udc
999			_c25728 _d25728