Woodhead, Nigel. <br/><br/>
Hypertext and hypermedia :  theory and applications / 
Nigel Woodhead. 
 - Reading, Mass. :  Addison-Wesley,  1991. 
 - x, 231 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography : p. 209-225. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hypertext systems.<br/>Interactive media.