Durr, William Kirtley <br/><br/>
Workbook for Secrets :  Teacher's annotated edition / 
W.K. Durr, J.M. LePere, B. Niehaus; Ill. T. Cooke. 
 - 2nd edition 
 - Boston :  Houghton Mifflin,  1974. 
 - 112 p. :  ill. ;  28 cm. 
 - Houghton Mifflin readers  Level 6 .
<br/><br/><label>ISBN: </label>0-395-16211-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Workbook<br/>Reading (Elementary)