Ulltang, O. <br/><br/>
Methods of Measuring Stock Abundance Other than by the use of Commercial Catch and Effort Data: FAO Fisheries Technical Paper No.176 (FIRS/T176) 

 - Rome,  Food and Agriculture Organization,  1977, 
 - 100p.  28cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fishing Survey<br/>Tagging Experiments<br/>Eggs and Larve Surveys<br/>Acoustic Abundance Estimation<br/>Standard Techniques