620.7  / Op2sm <br/>
       Systems modelling : world models - sense or nonsense 
 / The Open University 
 .- Milton Keynes: The Open University Press,  1975 
 .- 49p. 
<br/>unit 16<br/> 
<br><u>ISBN:</u> 0335060587 
<br/><u>Subject Headings:</u> <br/>Sense or nonsense;
<br/><U>Author Added Entry: </u><br/>Naughton, John;<br/>Jones, Lyn;
<br><U>Copy Details:</u><br> Acc. No.: <b>A68245</b>, Full Call No.: 620.7 Op2sm,   Item type:  Books , Location: COMPACT STORAGE (BASEMENT), unit 16<br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>