Gaya APA
ITTP., . (1987).
Pneumatic air supplies and regulators. module 4 ; instructor s guide (s.a).
:
California, Instrument Society of America,.
Gaya MLA
ITTP., .
"Pneumatic air supplies and regulators. module 4 ; instructor s guide".
s.a
:
California, Instrument Society of America,,
1987.
Text.