ISBN number for the reference

Signed-off-by: Egon Willighagen <egonw@users.sourceforge.net>
cdk · Sep 18, 2011 · 217977c · 217977c
1 parent acd8e9b
commit 217977c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/org/openscience/cdk/graph/Permutor.java b/src/main/org/openscience/cdk/graph/Permutor.java
@@ -41,7 +41,7 @@
  * 
  * <p>The algorithms used are from the book "Combinatorial Generation : 
  * Algorithms, Generation, and Search" (or C.A.G.E.S.) by D.L. Kreher and D.R.
- * Stinson.</p>
+ * Stinson. CRC Press (18 Dec 1998). ISBN-13 : 978-0849339882.</p>
  * 
  * @author         maclean
  * @cdk.created    2009-09-09