Gaya APA
Company, F, C. (1980).
Compton's encyclopedia and fact-index volume 11 ; g-gyro pages 1-270 .
Mercu buana:
Diva press group.
Gaya MLA
Company, F.E., Compton.
"Compton's encyclopedia and fact-index volume 11 ; g-gyro pages 1-270".
Mercu buana:
Diva press group,
1980.
Text.