Gaya APA
Britanica illustrated science library: Volcanoes and earthquakes. (2008).
Chicago:
Encyclopedia Britanica.
Gaya Chicago
Britanica illustrated science library: Volcanoes and earthquakes.
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Chicago:
Encyclopedia Britanica,
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Gaya MLA
Britanica illustrated science library: Volcanoes and earthquakes.
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Chicago:
Encyclopedia Britanica,
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Reference.
Gaya Turabian
Britanica illustrated science library: Volcanoes and earthquakes.
Chicago:
Encyclopedia Britanica,
2008.
Reference.