Maestro, Marco. <br/><br/>
What do you hear when cows sing? :  and other silly riddles  
by Marco and Giulio Maestro ; pictures by Giulio Maestro. 
 - 1st ed. 
 - [New York] :  HarperCollinsPublishers,  c1996. 
 - 48 p. :  col. ill. ;  23 cm. 
 - An I can read book .
<br/><br/><label>ISBN: </label>006024948X 0060249498 (lib. ed.) 
<br/><br/><label>LCCN: </label>94018686 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Riddles, Juvenile.<br/>Riddles.<br/>Jokes.
<br/><br/><label>LC Class. No.: </label>PN6371.5  / .M317 1996 
<br/><br/><label>Dewey Class. No.: </label>398.6