Gaya APA
Negoro, S. et al (1967).
Encyclopedia Of Chemical Technology Volume 14: Nomenelature To Petroleum ( Resouces) (2nd Ed).
New York:
John Wiley and Sons, Inc..
Gaya MLA
Negoro, ST. et al.
"Encyclopedia Of Chemical Technology Volume 14: Nomenelature To Petroleum ( Resouces)".
2nd Ed
New York:
John Wiley and Sons, Inc.,
1967.
Text.