Mackenzie, Fred T.,  1934- <br/><br/>
Our changing planet :  an introduction to earth system science and global environmental change / 
Fred T. MacKenzie, Judith A. Mackenzie. 
 - New York :  Toronto :  New York :  Macmillan College Pub. ;  Maxwell Macmillan Canada ;  Maxwell Macmillan International,  c1995. 
 - p. cm. 
<br/><br/><label>ISBN: </label>0023736534 
<br/><br/><label>LCCN: </label>94010075  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.<br/>Human ecology.<br/>Nature--Effect of human beings on.<br/>Global environmental change.
<br/><br/><label>LC Class. No.: </label>GE105  / .M33 1995 
<br/><br/><label>Dewey Class. No.: </label>363.7