Comets and the origin of life:  
/Proceedings of the Fifth College Park Colloquium on Chemical Evolution, University of Maryland, College Park, Maryland, U.S.A., October  
 - Dordrecht:   D. Reidel Publishing Company,   1981 
 - vii,  282p. 
<br/><br/><label>ISBN: </label>90-277-1318-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>523.6:576.1(082.2)   / M1