APA Style
CHANG, Y, E, A., Sullivan, R, S.
(1991).
QS: Quant System Version 2.0
.
New Jersey:
Prentice Hall.
MLA Style
CHANG, YIHLONG, ET, AL., Sullivan, Robert, S..
"QS: Quant System Version 2.0".
New Jersey:
Prentice Hall,
1991.
Text.