APA Style
Challenge : Level 3. (2000).
Ohio:
McGraw-Hill.
Chicago Style
Challenge : Level 3.
.
Ohio:
McGraw-Hill,
2000.
Printed Book.
MLA Style
Challenge : Level 3.
.
Ohio:
McGraw-Hill,
2000.
Printed Book.
Turabian Style
Challenge : Level 3.
Ohio:
McGraw-Hill,
2000.
Printed Book.