Mccallum, George P. <br/><br/>
Unsolved mysteries :  reading and discussion for intermediate level students / 
by George P. Mccallum. 
 - Edinburgh :  Nelson and Sons,  1990. 
 - 56 p. :  ill ;  25 cm. 
<br/><br/> Includes Index of vocabulary and phrasal verbs. 
<br/><br/><label>ISBN: </label>0175558973 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Conversation and phrase books.