The sciences :  an intergrated approach 
/ James Trefil, Robert M. Hazen 
 - New York  John Wiley & Sons 
 - iii, 263 p. :  23 cm 
<br/><br/><label>ISBN: </label>0471324892  TZS15,000/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sciences-study and teaching (higher)-United States
<br/><br/><label>Dewey Class. No.: </label>500