diff --git a/ippisite/ippidb/models.py b/ippisite/ippidb/models.py
index 61a810d1ea769af1b07ebe5d6e403faa3ce01147..2b188a844e95c994bdab6b68ff3c26a33c801887 100644
--- a/ippisite/ippidb/models.py
+++ b/ippisite/ippidb/models.py
@@ -40,6 +40,8 @@ class Bibliography(models.Model):
     class Meta:
         verbose_name_plural = "bibliographies"
 
+    def __str__(self):
+        return '{}, {}'.format(self.source, self.id_source)
 
 
 class Taxonomy(models.Model):