Halliday, M.A.K. <br/><br/>
Spoken and Written Language 

 - 2nd ed. 
 - Oxford :  Oxford University Press,  1992. 
 - 109 p. :  gráfs. 
<br/><br/> Appendix p. 102. - Technical terms p. 108. 
<br/><br/>References p. 104. - Further reading p. 105. 
<br/><br/>Developments of Speech. - Writing Systems. - Written language. - Spoken Language: Prosodic Features. - Written Language: Lexical Density. - Spoken  Language: Grammatical Intricacy. - Speaking, Writing and Learning. 
<br/><br/> In this work the author identifies the important differences between speaking and writing. 
<br/><br/><label>ISBN: </label>0-19-437153-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LINGÜÍSTICA<br/>EXPRESIÓN ORAL<br/>LENGUA ESCRITA<br/>ESCRITURA<br/>LENGUAJE HABLADO<br/>ALFABETO