Gaya APA
Mackay, C., Fridson, M, S.
(1996).
Extraordinary popular delusions and the madness of crowds
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nyu:
Wiley.
Gaya MLA
Mackay, Charles., Fridson, Martin, S..
"Extraordinary popular delusions and the madness of crowds".
nyu:
Wiley,
1996.
Buku.