Allen, Jeffrey, <br/><br/>
Mary Alice, operator number 9 /story by Jeffrey Allen ; pictures by James Marshall. 

 - Boston :  Little, Brown,  (c)1975. 
 - 31. pages :  color illustrations ;  24 cm. 
<br/><br/> When an efficient duck who gives the time over the telephone gets sick, other animals, believing the job to be easy, try to take her place. 
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<br/><br/><label>LCCN: </label>75012513 /AC 
<br/><br/><label>LC Class. No.: </label>PZ7  / .M379 1975 PZ7