Gaya APA
Lee, R. (1999).
Pocket Guide To Flanges, Fittings, & Piping Data (3).
United States of America:
Gulf Professional.
Gaya MLA
Lee, R.R..
"Pocket Guide To Flanges, Fittings, & Piping Data".
3
United States of America:
Gulf Professional,
1999.
Text.