%!s(int64=12) %!d(string=hai) anos · 84ea4d5b0b
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -727,6 +727,7 @@ See also [TeX](#tex)
 
				 * [Linux from Scratch](http://www.linuxfromscratch.org/lfs/view/stable/)
			
 
				 * [Ubuntu Pocket Guide and Reference](http://www.ubuntupocketguide.com/index_main.html)
			
 
				 * [What Every Programmer Should Know About Memory](http://www.akkadia.org/drepper/cpumemory.pdf) (PDF)
			
 
				+* [Learning Debian GNU/Linux](http://oreilly.com/openbook/debian/book/index.html)
			
 
				 
			
 
				 
			
 
				 ###Lisp