I purchased my TBR books from a person last year and she said that she had taken the course recently (so in like late 09 or early 2010)? I was looking through my TBR books and saw that many of the  books have different copyrighted dates. How can that be if it was all  given in a class in 2009 or 2010?
For example the physics book (part I) is copyrighted as 2003, 2000, 1997, 1996, etc.
Where as the G-Chem book (Part I) is copyrighted as 2007, 2003, 2001, 2000, 1995, etc
The biology book (part I) is copyrighted as 2003, 2000, 1997, etc.
I was wondering if you guys can look at your TBR books and tell me if it's copyrighted similarly. How do I find out which edition I have? Is the physics book from the 2003 edition and the G chem from 2007?
	
		
			
		
		
	
				
			For example the physics book (part I) is copyrighted as 2003, 2000, 1997, 1996, etc.
Where as the G-Chem book (Part I) is copyrighted as 2007, 2003, 2001, 2000, 1995, etc
The biology book (part I) is copyrighted as 2003, 2000, 1997, etc.
I was wondering if you guys can look at your TBR books and tell me if it's copyrighted similarly. How do I find out which edition I have? Is the physics book from the 2003 edition and the G chem from 2007?
 
  
 
		 
 
		 
 
		