Gaya APA
INCORPORATED, G. (1995).
ENCYCLOPEDIA AMERICANA INTERNATIONAL EDITION VOL. 23 PUMPS-RUSSELL .
USA:
GROLIER INTERNATIONAL.
Gaya MLA
INCORPORATED, GROLIER.
"ENCYCLOPEDIA AMERICANA INTERNATIONAL EDITION VOL. 23 PUMPS-RUSSELL".
USA:
GROLIER INTERNATIONAL,
1995.
Text.