APA Style
Informix 4GL by example. (1991).
California:
Informix Software.
Chicago Style
Informix 4GL by example.
.
California:
Informix Software,
1991.
Book.
MLA Style
Informix 4GL by example.
.
California:
Informix Software,
1991.
Book.
Turabian Style
Informix 4GL by example.
California:
Informix Software,
1991.
Book.