Rowntree, Derek <br/><br/>
Basically branching :  a handbook for programmers / 
Derek Rowntree 
 - London :  MacDonald,  1966 
 - x, 209 p. :  ill., facsims., diagrs. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction