Gaya APA
101 easy ways to get better grades. (2000).
Chicago:
World Book Inc..
Gaya Chicago
101 easy ways to get better grades.
.
Chicago:
World Book Inc.,
2000.
Text.
Gaya MLA
101 easy ways to get better grades.
.
Chicago:
World Book Inc.,
2000.
Text.
Gaya Turabian
101 easy ways to get better grades.
Chicago:
World Book Inc.,
2000.
Print.