Gaya APA
Production System technology. (1992).
[s.l.]:
[s.n.].
Gaya Chicago
Production System technology.
Ed.2Cet.3.
[s.l.]:
[s.n.],
1992.
Text.
Gaya MLA
Production System technology.
Ed.2Cet.3.
[s.l.]:
[s.n.],
1992.
Text.
Gaya Turabian
Production System technology.
[s.l.]:
[s.n.],
1992.
Print.