Merge pull request ossu#368 from adamgomes/patch-2

ericdouglas · web-flow · commit 5db6ba9863f9 · 2016-10-03T09:56:26.000-03:00
Update free-books.md
diff --git a/extras/free-books.md b/extras/free-books.md
@@ -48,6 +48,10 @@ Name | Author(s)
 
 ### Math (Discrete Math)
 
+Name | Author(s)
+:-- | :--:
+[Applied Discrete Structures](http://faculty.uml.edu/klevasseur/ads2/) | Alan Doerr, Ken Levasseur
+
 ### Algorithms
 
 ### Programming Paradigms
