Cliff, Norman <br/><br/>
Grammar and practice 
Michael Duckworth. 
 - San Diego  Harcourt Brace Jovanovich  c1987 
 - xxiv,494p.:  ill.;  25cm 
<br/><br/>Includes index and bibliography 
<br/><br/><label>ISBN: </label>0155027042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multivariate analysis.