APA Style
30 Ways to Improve Your Grades. (1976).
Indonesia:
Elex Media Komputindo.
Chicago Style
30 Ways to Improve Your Grades.
1st edition.
Indonesia:
Elex Media Komputindo,
1976.
Text.
MLA Style
30 Ways to Improve Your Grades.
1st edition.
Indonesia:
Elex Media Komputindo,
1976.
Text.
Turabian Style
30 Ways to Improve Your Grades.
Indonesia:
Elex Media Komputindo,
1976.
Print.