Comins, Neil F. <br/><br/>
What if the earth had two moons?:  and nine other thought-provoking speculations on the solar system 

 - New york  St Martin`s Press  2010 
 - 288 p.: 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780312598921 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Science
<br/><br/><label>Dewey Class. No.: </label>525