Systems under indirect observation  causality, structure, prediction 
K.G. Joreskog and H. Wold, editors. 
 - Amsterdam :  North-Holland,  1982. 
 - 2v. :  . illustration, ;  23cm 
 - Contributions to economic analysis  139 .
<br/><br/>Includes bibliographies 
<br/><br/><label>ISBN: </label>044486301X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Mathematical models--Congresses<br/>Social sciences--Statistical methods--Congresses