Hawkes, N (ed) <br/><br/>
International seminar on trends in mathematical modelling. venice, 13-18 december 1971 
Ed by N. Hawkes 
 - Berlin  Springer  1973 
 - vi  288 
 - Lecture notes in economics & mathematical systems 80 .
<br/><br/><label>ISBN: </label>3540061444 
<br/><br/><label>Dewey Class. No.: </label>14.05+22  / HAWK