diff --git a/pages/Sigman___Dos marchando juntos.md b/pages/Sigman___Dos marchando juntos.md
index 5e631c9..11c2fb3 100644
--- a/pages/Sigman___Dos marchando juntos.md	
+++ b/pages/Sigman___Dos marchando juntos.md	
@@ -33,5 +33,6 @@
 	  logseq.order-list-type:: number
 	- Escribano, D., Lapuente, F. J., Cuesta, J. A., Dunbar, R. I., & Sánchez, A. (2023). *Stability of the  personal relationship networks in a longitudinal study of middle school students*. Scientific Reports, 13(1), 14575.
 	  logseq.order-list-type:: number
-	- logseq.order-list-type:: number
+	- Aristoteles. (2016). Etica a Eudemo (spanish Edition). (n.p.): CreateSpace Independent Publishing Platform.
+	  logseq.order-list-type:: number
 -
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