diff --git a/VERSION b/VERSION
index b1e80bb..845639e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.1.3
+0.1.4
diff --git a/probstat.tex b/probstat.tex
index e68994f..ded13d4 100644
--- a/probstat.tex
+++ b/probstat.tex
@@ -286,7 +286,7 @@
 % Gamma
 \newcommandx\gam[1][1={\alpha,\beta}]{\textrm{Gamma}\left({#1}\right)}
 \newcommandx\dgamma[3][1=x,2=\alpha,3=\beta]%
-{\frac{1}{\Gamma\left( #2 \right) #3^{#2}} #1^{#2 -1}e^{- #1 / #3}}
+{\frac{#3^{#2}}{\Gamma\left( #2 \right)} #1^{#2-1}e^{-#3#1}}
 
 % InverseGamma
 \newcommandx\invgamma[1][1={\alpha,\beta}]{\textrm{InvGamma}\left({#1}\right)}
diff --git a/stat-cookbook.tex b/stat-cookbook.tex
index 9545270..d524006 100644
--- a/stat-cookbook.tex
+++ b/stat-cookbook.tex
@@ -25,6 +25,7 @@
 \usepackage{multicol}
 \usepackage{rotating}
 \usepackage{tikz}
+\usepackage{threeparttable}
 \usepackage{url}
 \usepackage{xspace}
 
@@ -185,7 +186,7 @@ \subsection{Discrete Distributions}
 
 \subsection{Continuous Distributions}
 
-\begin{center}
+\begin{threeparttable}
 \small
 %\newcolumntype{L}{>{\varwidth[c]{\linewidth}}l<{\endvarwidth}}
 \newcolumntype{M}{>{\begin{math}\displaystyle}c<{\end{math}}}
@@ -244,14 +245,14 @@ \subsection{Continuous Distributions}
   & \frac{2d_2^2(d_1+d_2-2)}{d_1(d_2-2)^2(d_2-4)} %\; d_2 > 4
   & \\[3ex]
 
-  Exponential & \ex & \pex & \dex &
+  Exponential\tnote{$\ast$} & \ex & \pex & \dex &
   \beta & \beta^2 &
-  \frac{1}{1-\beta s} \left(s < 1/\beta \right) \\[3ex]
+  \frac{1}{1-\frac{s}{\beta}} \left(s<\beta\right) \\[3ex]
 
-  Gamma & \gam &
-  \frac{\gamma(\alpha,x/\beta)}{\Gamma(\alpha)} & \dgamma &
-  \alpha\beta & \alpha\beta^2 &
-  \left( \frac{1}{1-\beta s} \right)^\alpha \left( s < 1/\beta \right)\\[3ex]
+  Gamma\tnote{$\ast$} & \gam &
+  \frac{\gamma(\alpha,\beta x)}{\Gamma(\alpha)} & \dgamma &
+  \frac{\alpha}{\beta} & \frac{\alpha}{\beta^2} &
+  \left(\frac{1}{1-\frac{s}{\beta}} \right)^\alpha \left(s<\beta\right)\\[3ex]
 
   Inverse Gamma & \invgamma & \pinvgamma & \dinvgamma &
   \frac{\beta}{\alpha-1} \; \alpha>1 &
@@ -284,7 +285,12 @@ \subsection{Continuous Distributions}
 
   \bottomrule
 \end{tabular}
-\end{center}
+\begin{tablenotes}
+\item[$\ast$] We use the \emph{rate} parameterization where
+  $\beta=\frac{1}{\lambda}$. Some textbooks use $\beta$ as \emph{scale}
+  parameter instead~\cite{Wasserman03}.
+\end{tablenotes}
+\end{threeparttable}
 
 \begin{figure}[H]
   \includegraphics[scale=0.35]{figs/uniform-pdf.pdf}