Lightfoot, David, <br/><br/>
Principles of diachronic syntax 
David W. Lightfoot. 
 - Cambridge  Cambridge University Press  1979. 
 - x, 429 pages:    illustration,    24 cm 
 - Cambridge studies in linguistics  23 .
<br/><br/> Includes indexes 
<br/><br/>Bibliography: p.  409 -427 
<br/><br/><label>ISBN: </label>0521220823 0521293502pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grammar, Comparative and general--Syntax<br/>Historical linguistics