APA Style
A Guide to PL/I. (1969).
Indonesia:
Elex Media Komputindo.
Chicago Style
A Guide to PL/I.
1st edition.
Indonesia:
Elex Media Komputindo,
1969.
Text.
MLA Style
A Guide to PL/I.
1st edition.
Indonesia:
Elex Media Komputindo,
1969.
Text.
Turabian Style
A Guide to PL/I.
Indonesia:
Elex Media Komputindo,
1969.
Print.