APA Style
Keene, C.
(2009).
NANCY DREW AND THE CLUE CREW #20: TREASURE TROUBLE
.
:
Aladdin Paperbacks.
MLA Style
Keene, Carolyn.
"NANCY DREW AND THE CLUE CREW #20: TREASURE TROUBLE".
:
Aladdin Paperbacks,
2009.
Text.