511.5  / op2g <br/>
       Introduction  
 / The Open Unversity 
 .- unit.1 
 .- Walton Hall: The Open Unversity press, 
 .- 74p. 
<br><u>ISBN:</u> 0335170552 
<br/><u>Subject Headings:</u> <br/>combinatorics and modelling;<br/>graphs and digraphs;<br/>networks;<br/>enumeration;<br/>design;
<br><U>Copy Details:</u><br> Acc. No.: <b>A77922</b>, Full Call No.: 511.5 op2g, (unit.1)  Item type:  Books , Location: COMPACT STORAGE (BASEMENT), <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>