APA Style
20 Steps to Better Writing. (1975).
Indonesia:
Elex Media Komputindo.
Chicago Style
20 Steps to Better Writing.
1st edition.
Indonesia:
Elex Media Komputindo,
1975.
Text.
MLA Style
20 Steps to Better Writing.
1st edition.
Indonesia:
Elex Media Komputindo,
1975.
Text.
Turabian Style
20 Steps to Better Writing.
Indonesia:
Elex Media Komputindo,
1975.
Print.