diff --git a/vignettes/config/bibliography.bib b/vignettes/config/bibliography.bib
index ffbe52464dd97dabe64ebf65e75356cd2c964e35..3fec2de6db045897805c6a6623a23b56a0188282 100644
--- a/vignettes/config/bibliography.bib
+++ b/vignettes/config/bibliography.bib
@@ -109,6 +109,16 @@
   Address                  = {Belo Horizonte, MG}
 }
 
+@Book{neto,
+  Title                    = {Como Fazer Experimentos},
+  Author                   = {Neto, B. B. and Scarminio, I. S. and Bruns, R. E.},
+  Publisher                = {Bookman},
+  Year                     = {2010},
+
+  Address                  = {Porto Alegre, RS},
+  Edition                  = {4}
+}
+
 @Misc{paula,
   Title                    = {Modelos de regressão: com apoio computacional},
 
@@ -123,8 +133,9 @@
   Title                    = {An{\'a}lise de dados categorizados},
   Author                   = {Paulino, Carlos Daniel Mimoso and Singer, Julio da Motta},
   Publisher                = {Edgard Bl{\"u}cher},
-  Address                  = {S{\~a}o Paulo, SP},
-  Year                     = {2006}
+  Year                     = {2006},
+
+  Address                  = {S{\~a}o Paulo, SP}
 }
 
 @Book{pimentel,