Gaya APA
Encyclopedia britannica: macropaedia knowledge in depth 1-20. (1975).
United States of America:
.
Gaya Chicago
Encyclopedia britannica: macropaedia knowledge in depth 1-20.
.
United States of America:
,
1975.
Text.
Gaya MLA
Encyclopedia britannica: macropaedia knowledge in depth 1-20.
.
United States of America:
,
1975.
Text.
Gaya Turabian
Encyclopedia britannica: macropaedia knowledge in depth 1-20.
United States of America:
,
1975.
Print.