1 files changed, 24 insertions, 0 deletions
diff --git a/psychology.bib b/psychology.bib
index 3a073c9..3777338 100644
--- a/psychology.bib
+++ b/psychology.bib
@@ -365,3 +365,27 @@
   edition   = {},
   volume    = {},
 }
+
+@book{cull2003,
+  title     = "Propaganda and mass persuasion: a historical encyclopedia, 1500 to the present",
+  author    = "Nicholas J. Cull, David Culbert, David Welch",
+  publisher = "ABC-CLIO",
+  isbn      = "1576078205,9781576078204,157607434X,9781576074343",
+  year      = "2003",
+  series    = "",
+  edition   = "",
+  volume    = "",
+  url       = "",
+}
+
+@book{fogg2011,
+  title     = "Persuasive technology: using computers to change what we think and do",
+  author    = "Brian J. Fogg",
+  publisher = "Morgan Kaufmann",
+  isbn      = "9781558606432,1558606432",
+  year      = "2011",
+  series    = "The Morgan Kaufmann series in interactive technologies",
+  edition   = "Nachdr., transferred to digital print",
+  volume    = "",
+  url       = ""
+}