Kenneth L. Pike <br/><br/>
Tone Languages :  A Technique for Determining the Number and Type of Pitch Contrasts in a language, with studies in Tonemic Substitution and Fusion 

 - Michigan  Ann Arbor, the University of Michigan Press  1948, 1972 
<br/><br/><label>ISBN: </label>0-472-08734-7 
<br/><br/><label>Dewey Class. No.: </label>414.6PIKT