Gaya APA
MATTEONI, L, D, M, L, D.
(1984).
Winterfall: the keytext program.--
.
Amerika :
The Economy Company.
Gaya MLA
MATTEONI, Louise,, Dk, MATTEONI,, Louise,, Dkk..
"Winterfall: the keytext program.--".
Amerika :
The Economy Company,
1984.
Buku.