diff --git a/doc/cheatsheet/README.txt b/doc/cheatsheet/README.txt
index e2f6ec042e9cc..d32fe5bcd05a6 100644
--- a/doc/cheatsheet/README.txt
+++ b/doc/cheatsheet/README.txt
@@ -2,3 +2,7 @@ The Pandas Cheat Sheet was created using Microsoft Powerpoint 2013.
 To create the PDF version, within Powerpoint, simply do a "Save As"
 and pick "PDF' as the format.
 
+This cheat sheet was inspired by the RstudioData Wrangling Cheatsheet[1], written by Irv Lustig, Princeton Consultants[2].
+
+[1]: https://www.rstudio.com/wp-content/uploads/2015/02/data-wrangling-cheatsheet.pdf
+[2]: http://www.princetonoptimization.com/